RT Book, Section A1 Holt, Shelby A1 Barron, Alison Unzeitig A1 Nwariaku, Fiemu A2 Morita, Shane Y. A2 Balch, Charles M. A2 Klimberg, V. Suzanne A2 Pawlik, Timothy M. A2 Posner, Mitchell C. A2 Tanabe, Kenneth K. SR Print(0) ID 1145757799 T1 Multiple Endocrine Neoplasia Type 1 T2 Textbook of Complex General Surgical Oncology YR 2018 FD 2018 PB McGraw-Hill Education PP New York, NY SN 9780071793315 LK hemonc.mhmedical.com/content.aspx?aid=1145757799 RD 2024/04/18 AB The multiple endocrine neoplasia type 1 (MEN1) syndrome was initially described in 1954 as Wermer’s syndrome. Dr Paul Wermer reported on a syndrome in which adenomatosis of the anterior pituitary, parathyroid, and pancreatic islets was observed in a family in which the father and four of nine siblings were affected.1 He postulated that this syndrome was likely inherited as an autosomal dominant disease and that these patients commonly also suffered from ulcers of the stomach and duodenum. It is now widely known that MEN1 consists of a constellation of multiglandular parathyroid disease, neuroendocrine tumors of the gastroenteropancreatic system, anterior pituitary adenomas, and other associated nonendocrine manifestations such as facial angiofibromas.