Neuroendocrine tumors (NETs) originate from diffuse neuroendocrine cell system and can develop in many organs. Gastroenteropancreatic (GEP) NETs account for approximately 70%, followed by bronchopulmonary thymic NETs.[1] The World Health Organization (WHO) classification divides GEP into well-differentiated poorly differentiated carcinoma (NEC). Well-differentiated be grade 1 (G1; mitotic count...

BACKGROUND Neuroendocrine tumors are rare neoplasms arising from neural and epithelial origin. METHODS AND RESULTS The case records of 4 patients with the diagnosis of neuroendocrine laryngeal tumor were retrospectively reviewed. In this analysis of our medical records, we describe a series of 4 men with neuroendocrine laryngeal tumors treated in our department since 1994, including the first...

A 67-year-old woman with a history of subtotal parathyroidectomy, distal pancreatectomy, and total splenectomy 23 years prior underwent surgical gastric resection for neuroendocrine tumors of the stomach and duodenum. Meticulous examination of the entire stomach and duodenum revealed multiple scattered, minute neuroendocrine tumors. To the best of our knowledge, this is the first case report of...

BACKGROUND Presacral masses are unusual growths that have a limited differential diagnosis, typically not including neuroendocrine tumors (NETs). Classically, NETs are well-differentiated gastroenteropancreatic tumors of probable benign behavior. These tumors are associated with a typical morphologic pattern and involve the distal colon, rectum, and genitourinary tract; they are considered less...