Table 2. Practice Guidelines for Surveillance of Multiple Endocrine Neoplasia Type 1 (MEN1)a
| Biochemical Test or Procedure | Condition Screened For | Age Screening Initiated (y) | Frequency |
| Serum prolactin and/or insulin-like growth factor 1 | Pituitary tumors | 5 | Every 1 y |
| Fasting total serum calcium and/or ionized calcium and PTH | Parathyroid tumors and PHPT | 8 | Every 1 y |
| Fasting serum gastrin | PNETs | 20 | Every 1 y |
| Chromogranin A, pancreatic polypeptide, glucagon, and vasointestinal polypeptide | PNETs | <10 | Every 1 y |
| Fasting glucose and insulin | PNETs | 5 | Every 1 y |
| Brain MRI | Pituitary tumors | 5 | Every 3–5 y based on biochemical results |
| Abdominal CT or MRIb [4] | PNETs | 20 | Every 3–5 y based on biochemical results |
| Abdominal CT, MRI, or endoscopic USb [37] | PNETs | <10 | Every 1 y |
| CT = computed tomography; MRI = magnetic resonance imaging; PHPT = primary hyperparathyroidism; PNETs = pancreatic neuroendocrine tumors; PTH = parathyroid hormone; US = ultrasound. | |||
| aAdapted from Brandi et al. [4] and Thakker et al. [37]. | |||
| bThe recommendations for abdominal imaging differ between two published guidelines for the diagnosis and management of MEN1.[4,37] There is weak evidence at this time to support annual imaging before age 10 years. Imaging before age 10 years does identify disease in a high proportion of patients, but it is not clear whether this impacts prognosis.[20,57] |
References
- Brandi ML, Gagel RF, Angeli A, et al.: Guidelines for diagnosis and therapy of MEN type 1 and type 2. J Clin Endocrinol Metab 86 (12): 5658-71, 2001. [PUBMED Abstract]
- Thomas-Marques L, Murat A, Delemer B, et al.: Prospective endoscopic ultrasonographic evaluation of the frequency of nonfunctioning pancreaticoduodenal endocrine tumors in patients with multiple endocrine neoplasia type 1. Am J Gastroenterol 101 (2): 266-73, 2006. [PUBMED Abstract]
- Thakker RV, Newey PJ, Walls GV, et al.: Clinical practice guidelines for multiple endocrine neoplasia type 1 (MEN1). J Clin Endocrinol Metab 97 (9): 2990-3011, 2012. [PUBMED Abstract]
- Langer P, Kann PH, Fendrich V, et al.: Prospective evaluation of imaging procedures for the detection of pancreaticoduodenal endocrine tumors in patients with multiple endocrine neoplasia type 1. World J Surg 28 (12): 1317-22, 2004. [PUBMED Abstract]
