title: Spontaneous Pancreatic beta cell tumor in the rat. A light and electron microscopic study.
abstract: Fine structural study of a pancreatic neoplasm found at autopsy of a 27-month-old female Long-Evans rat showed that the tumor consisted of, and derived from beta cells of the islets of Langerhans.
mesh_terms: D007516:Adenoma, Islet Cell / Q000473:pathology / Q000648:ultrastructure / Q000662:veterinary*; D000818:Animals; D005260:Female; D007515:Islets of Langerhans / Q000648:ultrastructure; D010190:Pancreatic Neoplasms / Q000473:pathology / Q000648:ultrastructure / Q000662:veterinary*; D051381:Rats; D012376:Rodent Diseases / Q000473:pathology*