title: Squamous cell carcinoma arising from ovarian mature cystic teratoma and causing small bowel obstruction.
abstract: Malignant transformation of mature cystic teratoma (MCT) is a rare phenomenon with incidence of approximately 1-3%. We report a 48-year-old woman who presented to the emergency room with symptoms of bowel obstruction. She underwent computed tomography scan for the evaluation of obstruction, which demonstrated diffuse ascites accompanying a cystic pelvic to lower abdominal mass which had invaded into the adjacent small bowel causing partial small bowel obstruction. Histologically, the mass demonstrated a MCT within which aroused a well-differentiated squamous cell carcinoma. Exploratory laparotomy was performed to confirm the diagnosis and debulking of the mass was performed.
authors.affiliation: Department of Radiology, Interventional Radiology Center, Johns Hopkins Medical Institute, Baltimore, Maryland, United States of America.
authors.forename: Hooman
authors.initials: H
authors.lastname: Yarmohammadi
authors.forename: Bahar
authors.initials: B
authors.lastname: Mansoori
authors.forename: Vince
authors.initials: V
authors.lastname: Wong
authors.forename: Vania
authors.initials: V
authors.lastname: Tacher
authors.forename: Luke R
authors.initials: LR
authors.lastname: Wilkins
authors.forename: Peter G
authors.initials: PG
authors.lastname: Pavlidakey
authors.forename: John R
authors.initials: JR
authors.lastname: Haaga
mesh_terms: D002294:Carcinoma, Squamous Cell / Q000150:complications* / Q000209:etiology* / Q000601:surgery; D005260:Female; D006801:Humans; D007415:Intestinal Obstruction / Q000209:etiology* / Q000601:surgery; D007421:Intestine, Small / Q000473:pathology*; D008875:Middle Aged; D016609:Neoplasms, Second Primary / Q000150:complications* / Q000209:etiology* / Q000601:surgery; D010051:Ovarian Neoplasms / Q000175:diagnosis* / Q000601:surgery; D013724:Teratoma / Q000175:diagnosis* / Q000601:surgery; D014057:Tomography, X-Ray Computed