Multiple Endocrine Neoplasia (MEN Syndrome)

Multiple Endocrine Neoplasia (MEN syndrome) is a rare inherited disorder in which tumors develop in more than one hormone-producing gland. It most often affects the parathyroid glands, pancreas, pituitary gland, thyroid, and adrenal glands. MEN syndrome is usually divided into MEN1 and MEN2, each with its own pattern of gland involvement and tumor risk. In MEN1, common problems include overactive parathyroid glands, stomach or intestinal ulcers, kidney stones, fatigue, and hormone-producing pancreatic tumors. MEN2 is more strongly linked to medullary thyroid cancer and may also involve pheochromocytoma, which can cause severe high blood pressure, sweating, and rapid heartbeat.

Because symptoms can appear gradually and overlap with other conditions, MEN syndrome is often diagnosed after multiple gland problems are found. Family history is very important, since the condition is passed through genes. Diagnosis may include hormone tests, imaging, and genetic testing. Treatment usually involves close monitoring, surgery for tumors, and management of hormone excess. Early detection matters because it can reduce complications and improve long-term outcomes.