title: A case of hemorrhagic cyst of the pancreas resembling the cystic endometriosis.
abstract: A 47-year-old Japanese woman with a history of epigastric pain and a recent episode of acute pancreatitis (back pain, nausea, and vomiting) and anemia was found to have a pancreatic cyst of the tail on CT-scan and ultrasonography. Especially, ultrasonography revealed the papillary solid lesion in the cyst. With the tentative diagnosis of a cystic neoplasm, distal pancreatectomy was performed. Histological examination of sections showed massive hemorrhage, surrounded fibrous connective tissue, and numerous macrophages with hemosiderin deposits; these histological findings resembled cystic endometriosis. The clinicopathological features and pathogenesis of the pancreatic endometrial cyst are discussed.
authors.affiliation: Second Department of Surgery, School of Medicine, Fukuoka University, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Sumiyoshi
authors.forename: Y
authors.initials: Y
authors.lastname: Yamashita
authors.forename: T
authors.initials: T
authors.lastname: Maekawa
authors.forename: T
authors.initials: T
authors.lastname: Sakai
authors.forename: T
authors.initials: T
authors.lastname: Shirakusa
mesh_terms: D000747:Anemia, Hypochromic / Q000209:etiology; D004715:Endometriosis / Q000175:diagnosis* / Q000473:pathology; D005260:Female; D006470:Hemorrhage / Q000150:complications / Q000175:diagnosis* / Q000473:pathology; D006801:Humans; D008875:Middle Aged; D010181:Pancreatic Cyst / Q000175:diagnosis* / Q000473:pathology; D010182:Pancreatic Diseases / Q000175:diagnosis* / Q000473:pathology