<prompt> MEN 2A is associated with following exceptMedullary Thyroid CarcinomaPituitary tumorPheochromocytomaHyperparathyroidism  <response>: Multiple Endocrine Neoplasia MEN are of the following types: MEN type 1 Wermers syndrome It includes adenomas of the parathyroid glands, pancreatic islets and pituitary gland. It is inherited as an autosomal dominant trait.Mutation of MENIN gene on chromosome 11q13 MEN type 2 Sipples syndrome It is dt mutation in RET gene. It is of two types:- iMEN type 2A- it is the combination of medullary carcinoma thyroid, pheochromocytoma , hyperparathyroidism and Hirschprung disease - No fecal soiling. ii MEN type 2B - it is the combination of medullary carcinoma thyroid, pheochromocytoma, mucosal neuromas mc Lips, Buccal cavity intestinal ganglioneuromatosis and marfanoid features, Eveed eyebrows,Megacolon, tongue nodules and chronic constipation- fecal soiling Reference : Bailey and Love 27th ed.chapter 53 . pg no .857 