Abstract
The multiple endocrine neoplasia type 1 (MEN1) is an autosomal dominant genetic disorder, characterized by development of endocrine tumors mainly in pituitary and parathyroid glands and in endocrine cells of pancreas/duodenum. However, tumors occurring in other endocrine/non-endocrine tissues have been reported. As result, an increasing prevalence of cases suspected to MEN1 has been obser…