Table 2. Regional Lymph Nodes (N)a
| Clinical Stage Definition b |
| cNX | Regional lymph nodes cannot be assessed. |
| cN0 | No palpable or visibly enlarged inguinal lymph nodes. |
| cN1 | Palpable mobile unilateral inguinal lymph node. |
| cN2 | Palpable mobile multiple or bilateral inguinal lymph nodes. |
| cN3 | Palpable fixed inguinal nodal mass or pelvic lymphadenopathy unilateral or bilateral. |
| Pathologic Stage Definition c |
| pNX | Regional lymph nodes cannot be assessed. |
| pN0 | No regional lymph node metastasis. |
| pN1 | Metastasis in a single inguinal lymph node. |
| pN2 | Metastases in multiple or bilateral inguinal lymph nodes. |
| pN3 | Extranodal extension of lymph node metastasis or pelvic lymph node(s) unilateral or bilateral. |
| aReprinted with permission from AJCC: Penis. In: Edge SB, Byrd DR, Compton CC, et al., eds.: AJCC Cancer Staging Manual. 7th ed. New York, NY: Springer, 2010, pp 447-55. |
| bClinical stage definition based on palpation, imaging. |
| cPathologic stage definition based on biopsy or surgical excision. |
