Symptoms of MEN vary depending on the type and location of the tumors. In MEN1, common symptoms include hyperparathyroidism, pituitary tumors, and pancreatic tumors. These may manifest as hypercalcemia, headaches, visual disturbances, and gastrointestinal issues. In MEN2, medullary thyroid carcinoma, pheochromocytoma, and parathyroid adenomas are prevalent, leading to symptoms like neck mass, hypertension, and hypercalcemia.
