Two histological types account for most malignant esophageal neoplasms: adenocarcinoma and squamous cell carcinoma. Adenocarcinomas typically start in the lower esophagus, and squamous cell carcinoma can develop throughout the esophagus. The epidemiology of these types varies markedly.
Estimated new cases and deaths from esophageal cancer in the United States in 2024:[1]
The incidence of esophageal cancer has risen in recent decades, coinciding with a shift in histological type and primary tumor location. Worldwide, squamous cell carcinoma is the predominant histology, and was historically more prevalent in the United States. However, the incidence of adenocarcinoma has risen dramatically in the last few decades and is now more prevalent than squamous cell carcinoma in the United States and western Europe.[2-4] The incidence of adenocarcinoma has increased most notably among White men.[5] In the United States, the median age of patients who present with esophageal cancer is 68 years.[6] Most adenocarcinomas are located in the distal esophagus. The cause of the rising incidence and demographic alterations is unknown.
The esophagus serves as a conduit to the gastrointestinal tract for food. The esophagus extends from the larynx to the stomach and lies in the posterior mediastinum within the thorax near the lung pleura, peritoneum, pericardium, and diaphragm. As it travels into the abdominal cavity, the esophagus makes an abrupt turn and enters the stomach. The most muscular segment of the gastrointestinal system, the esophagus is composed of inner circular and outer longitudinal muscle layers. The upper and lower esophagus are controlled by the sphincter function of the cricopharyngeus muscle and gastroesophageal sphincter, respectively. The esophagus has a rich network of lymphatic channels concentrated in the lamina propria and submucosa, which drains longitudinally along the submucosa.
Tumors of the esophagus are conventionally described in terms of distance of the upper border of the tumor to the incisors. When measured from the incisors via endoscopy, the esophagus extends approximately 30 cm to 40 cm. The esophagus is divided into four main segments:
Risk factors for squamous cell carcinoma of the esophagus include the following:
Risk factors associated with esophageal adenocarcinoma are less clear.[3] Barrett esophagus is an exception, and its presence is associated with an increased risk of developing adenocarcinoma of the esophagus. Chronic reflux is considered the predominant cause of Barrett metaplasia. The results of a population-based, case-controlled study from Sweden strongly suggest that symptomatic gastroesophageal reflux is a risk factor for esophageal adenocarcinoma. The frequency, severity, and duration of reflux symptoms were positively correlated with increased risk of esophageal adenocarcinoma.[7] For more information, see Esophageal Cancer Prevention.
Favorable prognostic factors include the following:
Patients with severe dysplasia in distal esophageal Barrett mucosa often have in situ or invasive cancer within the dysplastic area. After resection, these patients usually have excellent prognoses.[8]
In most cases, esophageal cancer is a treatable disease, but it is rarely curable. The 5-year relative survival rate is 21.6%. Patients with early-stage disease have a better chance of survival; 18.2% of patients are diagnosed at the local stage and have a 5-year relative survival rate of 48.1%.[6]
Adenocarcinomas, typically arising in Barrett esophagus, account for at least 50% of malignant lesions, and the incidence of this histology appears to be rising. Barrett esophagus contains glandular epithelium cephalad to the esophagogastric junction.
Three different types of glandular epithelium can be seen:
Approximately 30% of esophageal cancers in the United States are squamous cell carcinomas.[1]
Gastrointestinal stromal tumors can occur in the esophagus and are usually benign. For more information, see Gastrointestinal Stromal Tumors Treatment.
One of the major difficulties in allocating and comparing treatment modalities for patients with esophageal cancer is the lack of precise preoperative staging. The stage determines whether the intent of the therapeutic approach will be curative or palliative.
Standard noninvasive staging modalities include the following:
The overall tumor depth staging accuracy of endoscopic ultrasonography is 85% to 90%, compared with 50% to 80% for CT. The accuracy of regional nodal staging is 70% to 80% for endoscopic ultrasonography and 50% to 70% for CT.[1,2]
One retrospective series reported 93% sensitivity and 100% specificity of regional nodal staging with endoscopic ultrasound-guided fine-needle aspiration (FNA). Endoscopic ultrasound-guided FNA for lymph node staging is under prospective evaluation.[3]
Thoracoscopy and laparoscopy have been used in esophageal cancer staging at some surgical centers.[4-6] An intergroup trial reported an increase in positive lymph node detection to 56% of 107 evaluable patients with the use of thoracoscopy/laparoscopy, from 41% (with the use of noninvasive staging tests, e.g., CT, magnetic resonance imaging, and endoscopic ultrasound), with no major complications or deaths.[7]
Noninvasive PET scan using the radiolabeled glucose analog fluorine F 18-fludeoxyglucose (18F-FDG) for preoperative staging of esophageal cancer is more sensitive than a CT scan or endoscopic ultrasound in detection of distant metastases. A recent study of 262 patients with potentially resectable esophageal cancer demonstrated the utility of 18F-FDG PET in identifying confirmed distant metastatic disease in at least 4.8% of patients after standard evaluation.[8-12]
The AJCC has designated staging by TNM (tumor, node, metastasis) classification to define cancer of the esophagus and esophagogastric junction.[13] Tumors located in the gastric cardia within 5 cm of the gastroesophageal junction with extension into the esophagus or the gastroesophageal junction are classified as esophageal cancer. Tumors with the epicenter of the tumor located in the gastric cardia beyond 5 cm of the gastroesophageal junction or without extension into the esophagus are classified as gastric cancer.[13] For more information, see the Stage Information for Gastric Cancer section in Gastric Cancer Treatment.
The classification of involved abdominal lymph nodes as M1 disease is controversial. The presence of positive abdominal lymph nodes does not appear to have a prognosis as grave as that for metastases to distant organs.[14] Patients with regional and/or celiac axis lymphadenopathy should not necessarily be considered to have unresectable disease caused by metastases. Complete resection of the primary tumor and appropriate lymphadenectomy is attempted when possible.
T Category/Criteria | N Category/Criteria | M Category/Criteria | G Definition | L Category/Criteriab | |
---|---|---|---|---|---|
T = primary tumor; N = regional lymph nodes; M = distant metastasis; G = grade; L = location. | |||||
aReprinted with permission from AJCC: Esophageal and esophagogastric junction. In: Amin MB, Edge SB, Greene FL, et al., eds.: AJCC Cancer Staging Manual. 8th ed. New York, NY: Springer, 2017, pp. 185–202. | |||||
bLocation is defined by the position of the epicenter of the tumor in the esophagus. | |||||
TX = Tumor cannot be assessed. | NX = Regional lymph nodes cannot be assessed. | M0 = No distant metastasis. | GX = Grade cannot be assessed. | X = Location unknown. | |
T0 = No evidence of primary tumor. | N0 = No regional lymph node metastasis. | M1 = Distant metastasis. | G1 = Well differentiated. | Upper = Cervical esophagus to lower border of azygos vein. | |
Tis = High-grade dysplasia, defined as malignant cells confined to the epithelium by the basement membrane. | N1 = Metastasis in one or two regional lymph nodes. | G2 = Moderately differentiated. | Middle = Lower border of azygos vein to lower border of inferior pulmonary vein. | ||
G3 = Poorly differentiated, undifferentiated. | Lower = Lower border of inferior pulmonary vein to stomach, including gastroesophageal junction. | ||||
T1 = Tumor invades the lamina propria, muscularis mucosae, or submucosa. | N2 = Metastasis in three to six regional lymph nodes. | ||||
N3 = Metastasis in seven or more regional lymph nodes. | |||||
T1a = Tumor invades the lamina propria or muscularis mucosae. | |||||
T1b = Tumor invades the submucosa. | |||||
T2 = Tumor invades the muscularis propria. | |||||
T3 = Tumor invades adventitia. | |||||
T4 = Tumor invades adjacent structures. | |||||
T4a = Tumor invades the pleura, pericardium, azygos vein, diaphragm, or peritoneum. | |||||
T4b = Tumor invades other adjacent structures, such as the aorta, vertebral body, or airway. |
Stage | TNM | Grade | Tumor Location | Description | Illustration |
---|---|---|---|---|---|
T = primary tumor; N = regional lymph nodes; M = distant metastasis; G = grade; L = location; N/A = not applicable; p = pathological. | |||||
aReprinted with permission from AJCC: Esophageal and esophagogastric junction. In: Amin MB, Edge SB, Greene FL, et al., eds.: AJCC Cancer Staging Manual. 8th ed. New York, NY: Springer, 2017, pp. 185–202 | |||||
0 | Tis, N0, M0 | N/A | Any | Tis = High grade dysplasia, defined as malignant cells confined to the epithelium by the basement membrane. | |
N0 = No regional lymph node metastasis. | |||||
M0 = No distant metastasis. | |||||
G1 = N/A. | |||||
Any L = See Table 1. |
Stage | TNM | Grade | Tumor Location | Description | Illustration |
---|---|---|---|---|---|
T = primary tumor; N = regional lymph nodes; M = distant metastasis; G = grade; L = location; p = pathological. | |||||
aReprinted with permission from AJCC: Esophageal and esophagogastric junction. In: Amin MB, Edge SB, Greene FL, et al., eds.: AJCC Cancer Staging Manual. 8th ed. New York, NY: Springer, 2017, pp. 185–202. | |||||
IA | T1a, N0, M0 | G1 | Any | –T1a = Tumor invades the lamina propria or muscularis mucosae. | |
N0 = No regional lymph node metastasis. | |||||
M0 = No distant metastasis. | |||||
G1 = Well differentiated. | |||||
Any L = See Table 1. | |||||
T1a, N0, M0 | GX | Any | –T1a = Tumor invades the lamina propria or muscularis mucosae. | ||
N0 = No regional lymph node metastasis. | |||||
M0 = No distant metastasis. | |||||
GX = Grade cannot be assessed. | |||||
Any L = See Table 1. | |||||
IB | T1a, N0, M0 | G2–G3 | Any | –T1a = Tumor invades the lamina propria or muscularis mucosae. | |
N0 = No regional lymph node metastasis. | |||||
M0 = No distant metastasis. | |||||
G2 = Moderately differentiated. | |||||
G3 = Poorly differentiated, undifferentiated. | |||||
Any L = See Table 1. | |||||
T1b, N0, M0 | G1–G3 | Any | –T1b = Tumor invades the submucosa. | ||
N0 = No regional lymph node metastasis. | |||||
M0 = No distant metastasis. | |||||
G1 = Well differentiated. | |||||
G2 = Moderately differentiated. | |||||
G3 = Poorly differentiated, undifferentiated. | |||||
Any L = See Table 1. | |||||
T1b, N0, M0 | GX | Any | –T1b = Tumor invades the submucosa. | ||
N0 = No regional lymph node metastasis. | |||||
M0 = No distant metastasis. | |||||
GX = Grade cannot be assessed. | |||||
Any L = See Table 1. | |||||
T2, N0, M0 | G1 | Any | T2 = Tumor invades the muscularis propria. | ||
N0 = No regional lymph node metastasis. | |||||
M0 = No distant metastasis. | |||||
G1 = Well differentiated. | |||||
Any L = See Table 1. |
Stage | TNM | Grade | Tumor Locationb | Description | Illustration |
---|---|---|---|---|---|
T = primary tumor; N = regional lymph nodes; M = distant metastasis; G = grade; L = location; p = pathological. | |||||
aReprinted with permission from AJCC: Esophageal and esophagogastric junction. In: Amin MB, Edge SB, Greene FL, et al., eds.: AJCC Cancer Staging Manual. 8th ed. New York, NY: Springer, 2017, pp. 185–202. | |||||
bLocation is defined by the position of the epicenter of the tumor in the esophagus. | |||||
IIA | T2, N0, M0 | GX | Any | T2 = Tumor invades the muscularis propria. | |
N0 = No regional lymph node metastasis. | |||||
M0 = No distant metastasis. | |||||
GX = Grade cannot be assessed. | |||||
Any L = See Table 1. | |||||
T2, N0, M0 | G2–G3 | Any | T2 = Tumor invades the muscularis propria. | ||
N0 = No regional lymph node metastasis. | |||||
M0 = No distant metastasis. | |||||
G2 = Moderately differentiated. | |||||
G3 = Poorly differentiated, undifferentiated. | |||||
Any L = See Table 1. | |||||
T3, N0, M0 | Any | Lower | T3 = Tumor invades adventitia. | ||
N0 = No regional lymph node metastasis. | |||||
M0 = No distant metastasis. | |||||
Any G = See Table 1. | |||||
Lower = Lower border of inferior pulmonary vein to stomach, including gastroesophageal junction. | |||||
T3, N0, M0 | G1 | Upper/middle | T3 = Tumor invades adventitia. | ||
N0 = No regional lymph node metastasis. | |||||
M0 = No distant metastasis. | |||||
G1 = Well differentiated. | |||||
Upper = Cervical esophagus to lower border of azygos vein. | |||||
Middle = Lower border of azygos vein to lower border of inferior pulmonary vein. | |||||
IIB | T3, N0, M0 | G2–G3 | Upper/middle | T3 = Tumor invades adventitia. | |
N0 = No regional lymph node metastasis. | |||||
M0 = No distant metastasis. | |||||
G2 = Moderately differentiated. | |||||
G3 = Poorly differentiated, undifferentiated. | |||||
Upper = Cervical esophagus to lower border of azygos vein. | |||||
Middle = Lower border of azygos vein to lower border of inferior pulmonary vein. | |||||
T3, N0, M0 | GX | Any | T3 = Tumor invades adventitia. | ||
N0 = No regional lymph node metastasis. | |||||
M0 = No distant metastasis. | |||||
GX = Grade cannot be assessed. | |||||
Any L = See Table 1. | |||||
T3, N0, M0 | Any | Location X | T3 = Tumor invades adventitia. | ||
N0 = No regional lymph node metastasis. | |||||
M0 = No distant metastasis. | |||||
Any G = See Table 1. | |||||
Location X = Location unknown. | |||||
T1, N1, M0 | Any | Any | T1 = Tumor invades the lamina propria, muscularis mucosae, or submucosa. | ||
N1 = Metastasis in one or two regional lymph nodes. | |||||
M0 = No distant metastasis. | |||||
Any G = See Table 1. | |||||
Any L = See Table 1. |
Stage | TNM | Grade | Tumor Locationb | Description | Illustration |
---|---|---|---|---|---|
T = primary tumor; N = regional lymph nodes; M = distant metastasis; G = grade; L = location; p = pathological. | |||||
aReprinted with permission from AJCC: Esophageal and esophagogastric junction. In: Amin MB, Edge SB, Greene FL, et al., eds.: AJCC Cancer Staging Manual. 8th ed. New York, NY: Springer, 2017, pp. 185–202. | |||||
bLocation is defined by the position of the epicenter of the tumor in the esophagus. | |||||
IIIA | T1, N2, M0 | Any | Any | T1 = Tumor invades the lamina propria, muscularis mucosae, or submucosa. | |
–T1a = Tumor invades the lamina propria or muscularis mucosae. | |||||
–T1b = Tumor invades the submucosa. | |||||
N2 = Metastasis in three to six regional lymph nodes. | |||||
M0 = No distant metastasis. | |||||
Any G = See Table 1. | |||||
Any L = See Table 1. | |||||
T2, N1, M0 | Any | Any | T2 = Tumor invades the muscularis propria. | ||
N1 = Metastasis in one or two regional lymph nodes. | |||||
M0 = No distant metastasis. | |||||
Any G = See Table 1. | |||||
Any L = See Table 1. | |||||
IIIB | T2, N2, M0 | Any | Any | T2 = Tumor invades the muscularis propria. | |
N2 = Metastasis in three to six regional lymph nodes. | |||||
M0 = No distant metastasis. | |||||
Any G = See Table 1. | |||||
Any L = See Table 1. | |||||
T3, N1–N2, M0 | Any | Any | T3 = Tumor invades adventitia. | ||
N1 = Metastasis in one or two regional lymph nodes. | |||||
N2 = Metastasis in three to six regional lymph nodes. | |||||
M0 = No distant metastasis. | |||||
Any G = See Table 1. | |||||
Any L = See Table 1. | |||||
T4a, N0–1, M0 | Any | Any | –T4a = Tumor invades the pleura, pericardium, azygos vein, diaphragm, or peritoneum. | ||
N0 = No regional lymph node metastasis. | |||||
N1 = Metastasis in one or two regional lymph nodes. | |||||
M0 = No distant metastasis. | |||||
Any G = See Table 1. | |||||
Any L = See Table 1. |
Stage | TNM | Grade | Tumor Locationb | Description | Illustration |
---|---|---|---|---|---|
T = primary tumor; N = regional lymph nodes; M = distant metastasis; G = grade; L = location; p = pathological. | |||||
aReprinted with permission from AJCC: Esophageal and esophagogastric junction. In: Amin MB, Edge SB, Greene FL, et al., eds.: AJCC Cancer Staging Manual. 8th ed. New York, NY: Springer, 2017, pp. 185–202. | |||||
bLocation is defined by the position of the epicenter of the tumor in the esophagus. | |||||
IVA | T4a, N2, M0 | Any | Any | –T4a = Tumor invades the pleura, pericardium, azygos vein, diaphragm, or peritoneum. | |
N2 = Metastasis in three to six regional lymph nodes. | |||||
M0 = No distant metastasis. | |||||
Any G = See Table 1. | |||||
Any L = See Table 1. | |||||
T4b, N0–2, M0 | Any | Any | –T4b = Tumor invades other adjacent structures, such as the aorta, vertebral body, or airway. | ||
N0 = No regional lymph node metastasis. | |||||
N1 = Metastasis in one or two regional lymph nodes. | |||||
N2 = Metastasis in three to six regional lymph nodes. | |||||
M0 = No distant metastasis. | |||||
Any G = See Table 1. | |||||
Any L = See Table 1. | |||||
Any T, N3, M0 | Any | Any | Any T = See Table 1. | ||
N3 = Metastasis in seven or more regional lymph nodes. | |||||
M0 = No distant metastasis. | |||||
Any G = See Table 1. | |||||
Any L = See Table 1. | |||||
IVB | Any T, Any N, M1 | Any | Any | Any T = See Table 1. | |
Any N = See Table 1. | |||||
M1 = Distant metastasis. | |||||
Any G = See Table 1. | |||||
Any L = See Table 1. |
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Stage | TNM | Grade | Description | Illustration |
---|---|---|---|---|
T = primary tumor; N = regional lymph nodes; M = distant metastasis; G = grade; N/A = not applicable; p = pathological. | ||||
aReprinted with permission from AJCC: Esophageal and esophagogastric junction. In: Amin MB, Edge SB, Greene FL, et al., eds.: AJCC Cancer Staging Manual. 8th ed. New York, NY: Springer, 2017, pp. 185–202. | ||||
0 | Tis, N0, M0 | N/A | Tis = High-grade dysplasia, defined as malignant cells confined to the epithelium by the basement membrane. | |
N0 = No regional lymph node metastasis. | ||||
M0 = No distant metastasis. |
Stage | TNM | Grade | Description | Illustration |
---|---|---|---|---|
T = primary tumor; N = regional lymph nodes; M = distant metastasis; G = grade; p = pathological. | ||||
aReprinted with permission from AJCC: Esophageal and esophagogastric junction. In: Amin MB, Edge SB, Greene FL, et al., eds.: AJCC Cancer Staging Manual. 8th ed. New York, NY: Springer, 2017, pp. 185–202. | ||||
IA | T1a, N0, M0 | G1 | –T1a = Tumor invades the lamina propria or muscularis mucosae. | |
N0 = No regional lymph node metastasis. | ||||
M0 = No distant metastasis. | ||||
G1 = Well differentiated. | ||||
T1a, N0, M0 | GX | –T1a = Tumor invades the lamina propria or muscularis mucosae. | ||
N0 = No regional lymph node metastasis. | ||||
M0 = No distant metastasis. | ||||
GX = Grade cannot be assessed. | ||||
IB | T1a, N0, M0 | G2 | –T1a = Tumor invades the lamina propria or muscularis mucosae. | |
N0 = No regional lymph node metastasis. | ||||
M0 = No distant metastasis. | ||||
G2 = Moderately differentiated. | ||||
T1b, N0, M0 | G1–2 | –T1b = Tumor invades the submucosa. | ||
N0 = No regional lymph node metastasis. | ||||
M0 = No distant metastasis. | ||||
G1 = Well differentiated. | ||||
G2 = Moderately differentiated. | ||||
T1b, N0, M0 | GX | –T1b = Tumor invades the submucosa. | ||
N0 = No regional lymph node metastasis. | ||||
M0 = No distant metastasis. | ||||
GX = Grade cannot be assessed. | ||||
IC | T1, N0, M0 | G3 | T1 = Tumor invades the lamina propria, muscularis mucosae, or submucosa. | |
–T1a = Tumor invades the lamina propria or muscularis mucosae. | ||||
–T1b = Tumor invades the submucosa. | ||||
N0 = No regional lymph node metastasis. | ||||
M0 = No distant metastasis. | ||||
G3 = Poorly differentiated, undifferentiated. | ||||
T2, N0, M0 | G1–2 | T2 = Tumor invades the muscularis propria. | ||
N0 = No regional lymph node metastasis. | ||||
M0 = No distant metastasis. | ||||
G1 = Well differentiated. | ||||
G2 = Moderately differentiated. |
Stage | TNM | Grade | Description | Illustration |
---|---|---|---|---|
T = primary tumor; N = regional lymph nodes; M = distant metastasis; G = grade; p = pathological. | ||||
aReprinted with permission from AJCC: Esophageal and esophagogastric junction. In: Amin MB, Edge SB, Greene FL, et al., eds.: AJCC Cancer Staging Manual. 8th ed. New York, NY: Springer, 2017, pp. 185–202. | ||||
IIA | T2, N0, M0 | G3 | T2 = Tumor invades the muscularis propria. | |
N0 = No regional lymph node metastasis. | ||||
M0 = No distant metastasis. | ||||
G3 = Poorly differentiated, undifferentiated. | ||||
T2, N0, M0 | GX | T2 = Tumor invades the muscularis propria. | ||
N0 = No regional lymph node metastasis. | ||||
M0 = No distant metastasis. | ||||
GX = Grade cannot be assessed. | ||||
IIB | T1, N1, M0 | Any | T1 = Tumor invades the lamina propria, muscularis mucosae, or submucosa. | |
–T1a = Tumor invades the lamina propria or muscularis mucosae. | ||||
–T1b = Tumor invades the submucosa. | ||||
N1 = Metastasis in one or two regional lymph nodes. | ||||
M0 = No distant metastasis. | ||||
Any G = See Table 1. | ||||
T3, N0, M0 | Any | T3 = Tumor invades adventitia. | ||
N0 = No regional lymph node metastasis. | ||||
M0 = No distant metastasis. | ||||
Any G = See Table 1. |
Stage | TNM | Grade | Description | Illustration |
---|---|---|---|---|
T = primary tumor; N = regional lymph nodes; M = distant metastasis; G = grade; p = pathological. | ||||
aReprinted with permission from AJCC: Esophageal and esophagogastric junction. In: Amin MB, Edge SB, Greene FL, et al., eds.: AJCC Cancer Staging Manual. 8th ed. New York, NY: Springer, 2017, pp. 185–202. | ||||
IIIA | T1, N2, M0 | Any | T1 = Tumor invades the lamina propria, muscularis mucosae, or submucosa. | |
–T1a = Tumor invades the lamina propria or muscularis mucosae. | ||||
–T1b = Tumor invades the submucosa. | ||||
N2 = Metastasis in three to six regional lymph nodes. | ||||
M0 = No distant metastasis. | ||||
Any G = See Table 1. | ||||
T2, N1, M0 | Any | T2 = Tumor invades the muscularis propria. | ||
N1 = Metastasis in one or two regional lymph nodes. | ||||
M0 = No distant metastasis. | ||||
Any G = See Table 1. | ||||
IIIB | T2, N2, M0 | Any | T2 = Tumor invades the muscularis propria. | |
N2 = Metastasis in three to six regional lymph nodes. | ||||
M0 = No distant metastasis. | ||||
Any G = See Table 1. | ||||
T3, N1–2, M0 | Any | T3 = Tumor invades adventitia. | ||
N1 = Metastasis in one or two regional lymph nodes. | ||||
N2 = Metastasis in three to six regional lymph nodes. | ||||
M0 = No distant metastasis. | ||||
Any G = See Table 1. | ||||
T4a, N0–1, M0 | Any | –T4a = Tumor invades the pleura, pericardium, azygos vein, diaphragm, or peritoneum. | ||
N0 = No regional lymph node metastasis. | ||||
N1 = Metastasis in one or two regional lymph nodes. | ||||
M0 = No distant metastasis. | ||||
Any G = See Table 1. |
Stage | TNM | Grade | Description | Illustration |
---|---|---|---|---|
T = primary tumor; N = regional lymph nodes; M = distant metastasis; G = grade; p = pathological. | ||||
aReprinted with permission from AJCC: Esophageal and esophagogastric junction. In: Amin MB, Edge SB, Greene FL, et al., eds.: AJCC Cancer Staging Manual. 8th ed. New York, NY: Springer, 2017, pp. 185–202. | ||||
IVA | T4a, N2, M0 | Any | –T4a = Tumor invades the pleura, pericardium, azygos vein, diaphragm, or peritoneum. | |
N2 = Metastasis in three to six regional lymph nodes. | ||||
M0 = No distant metastasis. | ||||
Any G = See Table 1. | ||||
T4b, N0–2, M0 | Any | –T4b = Tumor invades other adjacent structures, such as the aorta, vertebral body, or airway. | ||
N0 = No regional lymph node metastasis. | ||||
N1 = Metastasis in one or two regional lymph nodes. | ||||
N2 = Metastasis in three to six regional lymph nodes. | ||||
M0 = No distant metastasis. | ||||
Any G = See Table 1. | ||||
Any T, N3, M0 | Any | Any T = See Table 1. | ||
N3 = Metastasis in seven or more regional lymph nodes. | ||||
M0 = No distant metastasis. | ||||
Any G = See Table 1. | ||||
IVB | Any T, Any N, M1 | Any | Any T = See Table 1. | |
Any N = See Table 1. | ||||
M1 = Distant metastasis. | ||||
Any G = See Table 1. |
For patients with minimally invasive resectable esophageal cancer, surgical resection alone offers the potential for cure. In contrast, therapeutic management for patients with locally advanced resectable esophageal cancer has evolved significantly over the last few decades. Because of the risk of distant metastases and local relapse, multimodality therapy with chemotherapy, radiation therapy, and surgical resection has become the standard of care.
Effective palliation may be obtained in individual cases with various combinations of the following:
Stage (TNM Staging Criteria) | Treatment Options |
---|---|
Stage 0 Esophageal Cancer | Surgery |
Endoscopic resection | |
Stage I Esophageal Cancer | Chemoradiation therapy followed by surgery |
Surgery alone | |
Stage II Esophageal Cancer | Chemoradiation therapy followed by surgery |
Surgery alone | |
Chemotherapy followed by surgery | |
Definitive chemoradiation therapy | |
Stage III Esophageal Cancer | Chemoradiation therapy followed by surgery |
Preoperative chemotherapy followed by surgery | |
Definitive chemoradiation therapy | |
Stage IV Esophageal Cancer | Chemoradiation therapy followed by surgery (for patients with stage IVA disease) |
Chemotherapy, which has provided partial responses for patients with metastatic distal esophageal adenocarcinomas | |
Adjuvant therapy for patients with completely resected (negative margins) esophageal adenocarcinoma, esophageal squamous cell carcinoma, or gastroesophageal junction cancer who had residual pathological disease after concurrent chemoradiation therapy | |
Immunotherapy and chemoimmunotherapy for patients with previously untreated, unresectable, advanced or metastatic esophageal squamous cell carcinoma | |
Immunotherapy and chemoimmunotherapy for patients with previously untreated advanced or metastatic esophageal adenocarcinoma or gastroesophageal junction cancer | |
Immunotherapy for patients who relapse after one prior line of standard therapy | |
Nivolumab and chemotherapy for patients with adenocarcinoma | |
Nd:YAG endoluminal tumor destruction or electrocoagulation | |
Endoscopic-placed stents to provide palliation of dysphagia | |
Radiation therapy with or without intraluminal intubation and dilation | |
Intraluminal brachytherapy to provide palliation of dysphagia | |
Clinical trials evaluating single-agent or combination chemotherapy | |
Recurrent Esophageal Cancer | Palliative use of any of the other therapies, including supportive care |
Immunotherapy and chemoimmunotherapy for patients with recurrent esophageal squamous cell carcinoma |
The prevalence of Barrett metaplasia in adenocarcinoma of the esophagus suggests that Barrett esophagus is a premalignant condition. Endoscopic surveillance of patients with Barrett metaplasia may detect adenocarcinoma at an earlier stage that is more amenable to curative resection. Strong consideration should be given to resection in patients with high-grade dysplasia in the setting of Barrett metaplasia.[7]
The survival rate of patients with esophageal cancer is poor. Surgical treatment of resectable esophageal cancers results in 5-year survival rates of 5% to 30%, with higher survival rates in patients with early-stage cancers.[8] Asymptomatic small tumors confined to the esophageal mucosa or submucosa are detected only by chance. Surgery is the treatment of choice for these small tumors. Once symptoms are present (e.g., dysphagia, in most cases), esophageal cancers have usually invaded the muscularis propria or beyond and may have metastasized to lymph nodes or other organs.
In some patients with partial esophageal obstruction, dysphagia may be relieved by placement of an expandable metallic stent [9] or by radiation therapy if the patient has disseminated disease or is not a candidate for surgery. Alternative methods of relieving dysphagia have been reported, including laser therapy and electrocoagulation to destroy intraluminal tumor.[10-12]
In the presence of complete esophageal obstruction without clinical evidence of systemic metastasis, surgical excision of the tumor with mobilization of the stomach to replace the esophagus has been the traditional means of relieving the dysphagia.
The optimal surgical approach for radical resection of esophageal cancer is not known. One approach advocates transhiatal esophagectomy with anastomosis of the stomach to the cervical esophagus. A second approach advocates abdominal mobilization of the stomach and transthoracic excision of the esophagus with anastomosis of the stomach to the upper thoracic esophagus or the cervical esophagus. One study concluded that transhiatal esophagectomy was associated with lower morbidity than was transthoracic esophagectomy with extended en bloc lymphadenectomy; however, median overall disease-free and quality-adjusted survival did not differ significantly.[13] Similarly, no differences in long-term quality of life (QOL) using validated QOL instruments have been reported.[14] More recently, minimally invasive approaches that offer potential advantages of smaller incisions, decreased intraoperative blood loss, fewer postoperative complications, and shorter hospital stays have emerged. However, the ability to obtain negative surgical margins, the adequacy of lymph node dissection, and long-term outcomes have not been fully established with this approach.[15]
In the United States, the median age of patients who present with esophageal cancer is 68 years.[16] The results of a retrospective review of 505 consecutive patients who were operated on by a single surgical team over 17 years found no difference in the perioperative mortality, median survival, or palliative benefit of esophagectomy on dysphagia when the patients older than 70 years were compared with their younger peers.[17][Level of evidence C1] All of the patients in this series were selected for surgery on the basis of potential operative risk. Age alone does not determine therapy for patients with potentially resectable disease.
Evidence (fluorouracil [5-FU], leucovorin, oxaliplatin, and docetaxel [FLOT] chemotherapy plus trastuzumab and pertuzumab):
On the basis of several randomized trial results, chemoradiation followed by surgery is a treatment option for patients with stages IB, II, III, and IVA esophageal cancer.
Phase III trials have compared preoperative concurrent chemoradiation therapy with surgery alone for patients with esophageal cancer.[19-25][Level of evidence A1] The benefit of neoadjuvant chemoradiation has been controversial because of contradictory results of early randomized studies.[19-22] However, the Chemoradiotherapy for Oesophageal Cancer Followed by Surgery Study (CROSS) has definitively demonstrated a survival benefit for preoperative chemoradiation compared with surgery alone in locally advanced esophageal cancer.[23]
For early-stage tumors, the role of preoperative chemoradiation remains controversial. Although the CROSS study included early-stage patients, the Francophone de Cancérologie Digestive (FFCD) 9901 study (NCT00047112),[25] which included only early-stage (stage I or II) patients, failed to demonstrate a survival advantage in this group of patients.
Evidence (preoperative chemoradiation therapy):
In conclusion, this trial confirmed that trastuzumab does not have a role in the preoperative treatment of HER2-positive esophageal or gastroesophageal cancer, either with chemotherapy alone or with chemoradiation therapy.
The effects of preoperative chemotherapy are being evaluated in randomized trials. Several studies have demonstrated a survival benefit with preoperative chemotherapy compared with surgery alone.[28-30] However, one large randomized study failed to confirm a survival benefit with preoperative chemotherapy.[31] Compared with preoperative chemotherapy alone, preoperative chemoradiation therapy improves pathological response and may improve outcomes.[32]
Evidence (preoperative chemotherapy):
The interpretation of the results from the intergroup and preoperative chemotherapy trials is challenging because T or N staging was not reported, and prerandomization and radiation could be offered at the discretion of the treating oncologist.
In the ESOPEC trial, patients did not receive adjuvant nivolumab; thus, it is not possible to conclude that perioperative FLOT is superior to preoperative CROSS and adjuvant nivolumab.
For patients who are deemed either medically inoperable or have tumors that are unresectable, the efficacy of definitive chemoradiation has been established in numerous randomized controlled trials.[36,37] For patients with squamous cell carcinomas of the esophagus, definitive chemoradiation may offer equivalent outcomes, compared with preoperative chemoradiation followed by surgical resection.[38,39]
Evidence (definitive chemoradiation):
Evidence (adjuvant therapy):
Given the positive results for the use of nivolumab after chemoradiation therapy and surgery in patients with esophageal cancer, an ongoing study will determine whether the adjuvant use of checkpoint inhibitor therapy improves outcomes in patients undergoing definitive chemoradiation therapy without surgery (KEYNOTE-975 [NCT04210115]). Studies are also evaluating potential benefits in patients undergoing perioperative chemotherapy without radiation therapy (e.g., KEYNOTE-585 [NCT03221426]).[43]
Phase III randomized trials have compared chemotherapy with chemoimmunotherapy as first-line treatment for patients with advanced squamous cell carcinoma.[44-46]
Evidence (immunotherapy and chemoimmunotherapy for patients with squamous cell carcinoma):
Camrelizumab is only approved for use in China.
Notably, in an exploratory analysis in patients with a PD-L1 CPS of less than 10, median OS was 10.5 months in the pembrolizumab and chemotherapy group versus 10.6 months in the placebo and chemotherapy group (HR, 0.86; 95% CI, 0.68–1.10).
In April 2021, the U.S. Food and Drug Administration approved nivolumab in combination with fluoropyrimidine- and platinum-containing chemotherapy for patients with advanced or metastatic gastric cancer, gastroesophageal junction cancer, and esophageal adenocarcinoma after the publication of the results of the CheckMate-649 trial.[47]
Evidence (immunotherapy and chemoimmunotherapy for patients with adenocarcinoma):
Pembrolizumab or nivolumab can be given to patients with esophageal cancer who were previously treated with a chemotherapy regimen that did not include an immune checkpoint inhibitor. Pembrolizumab is appropriate for patients with squamous or adenocarcinoma histology and a CPS of 10 or more. Nivolumab can be given to patients with squamous or adenosquamous histology, regardless of PD-L1 expression.
Evidence (immunotherapy for patients who relapse after one prior line of standard therapy):
Two randomized trials have shown no significant OS benefit for postoperative radiation therapy compared with surgery alone.[51,52][Level of evidence A1] All newly diagnosed patients should be considered candidates for therapies and clinical trials comparing various treatment modalities. Information about ongoing clinical trials is available from the NCI website.
The DPYD gene encodes an enzyme that catabolizes pyrimidines and fluoropyrimidines, like capecitabine and fluorouracil. An estimated 1% to 2% of the population has germline pathogenic variants in DPYD, which lead to reduced DPD protein function and an accumulation of pyrimidines and fluoropyrimidines in the body.[53,54] Patients with the DPYD*2A variant who receive fluoropyrimidines may experience severe, life-threatening toxicities that are sometimes fatal. Many other DPYD variants have been identified, with a range of clinical effects.[53-55] Fluoropyrimidine avoidance or a dose reduction of 50% may be recommended based on the patient's DPYD genotype and number of functioning DPYD alleles.[56-58] DPYD genetic testing costs less than $200, but insurance coverage varies due to a lack of national guidelines.[59] In addition, testing may delay therapy by 2 weeks, which would not be advisable in urgent situations. This controversial issue requires further evaluation.[60]
Stage 0 squamous cell esophageal cancer is rarely seen in the United States, but surgery has been used. For early-stage minimally invasive esophageal cancer, surgical and endoscopic techniques offer high rates of cure.
Use our advanced clinical trial search to find NCI-supported cancer clinical trials that are now enrolling patients. The search can be narrowed by location of the trial, type of treatment, name of the drug, and other criteria. General information about clinical trials is also available.
Treatment options for stage I esophageal cancer include the following:
Use our advanced clinical trial search to find NCI-supported cancer clinical trials that are now enrolling patients. The search can be narrowed by location of the trial, type of treatment, name of the drug, and other criteria. General information about clinical trials is also available.
Treatment options for stage II esophageal cancer include the following:
Use our advanced clinical trial search to find NCI-supported cancer clinical trials that are now enrolling patients. The search can be narrowed by location of the trial, type of treatment, name of the drug, and other criteria. General information about clinical trials is also available.
Treatment options for stage III esophageal cancer include the following:
Use our advanced clinical trial search to find NCI-supported cancer clinical trials that are now enrolling patients. The search can be narrowed by location of the trial, type of treatment, name of the drug, and other criteria. General information about clinical trials is also available.
At diagnosis, approximately 50% of patients with esophageal cancer have metastatic disease and are candidates for palliative therapy.[1]
Treatment options for stage IV esophageal cancer include the following:
The treatment of patients with human epidermal growth factor receptor 2 (HER2)-negative, locally advanced, inoperable, recurrent, or metastatic esophageal cancer has improved with the introduction of chemoimmunotherapy as front-line therapy and immunotherapy for patients who relapse following one prior line of chemotherapy. First-line chemoimmunotherapy can now be considered the standard of care for patients with advanced esophageal cancer of squamous or adenocarcinoma histology and programmed death-ligand 1 (PD-L1) expression (although the optimal cutoff still needs to be defined). For more information, see the Immunotherapy and Chemoimmunotherapy section.
Use our advanced clinical trial search to find NCI-supported cancer clinical trials that are now enrolling patients. The search can be narrowed by location of the trial, type of treatment, name of the drug, and other criteria. General information about clinical trials is also available.
Palliation presents difficult problems for all patients with recurrent esophageal cancer. All patients should be considered candidates for clinical trials as outlined in the Treatment Option Overview for Esophageal Cancer section of this summary.
Treatment options for recurrent esophageal cancer include the following:
Use our advanced clinical trial search to find NCI-supported cancer clinical trials that are now enrolling patients. The search can be narrowed by location of the trial, type of treatment, name of the drug, and other criteria. General information about clinical trials is also available.
The PDQ cancer information summaries are reviewed regularly and updated as new information becomes available. This section describes the latest changes made to this summary as of the date above.
General Information About Esophageal Cancer
Revised text about the 5-year relative survival rate of patients with esophageal cancer.
Treatment Option Overview for Esophageal Cancer
Added Perioperative Chemotherapy as a new subsection.
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This PDQ cancer information summary for health professionals provides comprehensive, peer-reviewed, evidence-based information about treatment of adult esophageal cancer. It is intended as a resource to inform and assist clinicians in the care of their patients. It does not provide formal guidelines or recommendations for making health care decisions.
This summary is reviewed regularly and updated as necessary by the PDQ Adult Treatment Editorial Board, which is editorially independent of the National Cancer Institute (NCI). The summary reflects an independent review of the literature and does not represent a policy statement of NCI or the National Institutes of Health (NIH).
Board members review recently published articles each month to determine whether an article should:
Changes to the summaries are made through a consensus process in which Board members evaluate the strength of the evidence in the published articles and determine how the article should be included in the summary.
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The preferred citation for this PDQ summary is:
PDQ® Adult Treatment Editorial Board. PDQ Esophageal Cancer Treatment. Bethesda, MD: National Cancer Institute. Updated <MM/DD/YYYY>. Available at: https://www.cancer.gov/types/esophageal/hp/esophageal-treatment-pdq. Accessed <MM/DD/YYYY>. [PMID: 26389338]
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