<prompt> Pancreatitis, pituitary tumor and phaeochrornocytoma may be associated with:Medullary carinoma of thyroidAnaplastic carcinoma of thyroidPapillary carcinoma of thyroidFollicular carcinoma of thyroid  <response>: Clinical presentation Type 1 MEN Hyperparathyroidism is most common initial clinical manifestation of type s multiple endocrine neoplasia MEN. Some patients may manifest findings of ZES before they have hyperparathyroidism. Symptoms of gastrinoma may become clinically apparent either with abdominal pain and diarrhea or with complications such as ulcer perforation or bleeding. Type 2A MEN All patients develop MTC on the basis of C-cell hyperplasia. About 5o of patients with MTC manifest pheochromocytomas usually late in life, and 2o of patients have hyperparathyroidism. Type 2B MEN Pheochromocytomas occur earlier than in patients with type 2A MEN. Ref : Harrisons Principles of Internal Medicine 21st ed 