title: Diffuse intraabdominal fibrosis and inflammation mimicking peritoneal carcinomatosis recurred after surgery for borderline ovarian tumor misdiagnosed by 18F-fluorodeoxyglucose-positron emission tomography.
abstract: BACKGROUND
  18F-fluorodeoxyglucose-positron emission tomography (FDG-PET) adds to conventional imaging in the detection and staging of peritoneal carcinomatosis.
  
  
  METHODS
  Herein we report a 27-year-old woman with multiple intraperitoneal masses detected by 18F-FDG-PET, suggesting peritoneal carcinomatosis. She had undergone laparoscopic unilateral oophorectomy for a left ovarian mucinous borderline tumor approximately five years before. Based on imaging and intraoperative findings, multiple intraabdominal masses strongly suggested peritoneal recurrence from a previous ovarian borderline tumor, but it finally proved to be inflammation and fibrosis on histopathologic examination.
  
  
  CONCLUSIONS
  Although 18F-FDG-PET is well known to be a highly sensitive imaging tool for identification of peritoneal carcinomatosis, FDG uptake is not tumor-specific. Therefore, the possibility of a false-positive diagnosis due to benign conditions, such as inflammation, should always be taken into consideration.
authors: Department of Obstetrics and Gynecology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea.
authors: J H
authors: JH
authors: Hong
authors: S H
authors: SH
authors: Song
authors: S E
authors: SE
authors: Kim
authors: J K
authors: JK
authors: Lee
authors: N W
authors: NW
authors: Lee
authors: K W
authors: KW
authors: Lee