title: Borderline endometrioid tumor arising in a paratubal cyst: a case report.
abstract: BACKGROUND
  Paratubal cysts, generally known as hydatid cysts of Morgagni, are small round cysts attached by a pedicle to the fimbriated end of the tube. The following represents the first reported case of an endometrioid tumor of low malignant potential arising in a paratubal cyst.
  
  
  METHODS
  A 45-year-old nulliparous female was referred with a complex right adnexal mass on pelvic sonogram. She underwent laparoscopic bilateral ovarian cystectomy and partial right salpingectomy (for a 3-cm torsed paratubal cyst). All frozen-section diagnoses were benign; however, final pathology revealed a borderline tumor of low malignant potential of endometrioid type in the right paratubal cyst. The patient underwent extensive counseling regarding management options and decided to have a laparoscopic right salpingo-oophorectomy. Final pathologic analysis revealed no evidence of persistent borderline tumor.
  
  
  CONCLUSIONS
  Paratubal cysts are very difficult to diagnose with sonography; therefore, their management should be approached as any other adnexal mass. Laparoscopic surgery is an option in the management of adnexal masses; however, rupture or puncture of masses should be avoided when possible to prevent potential tumor dissemination in the event of a malignancy.
authors.affiliation: Department of Obstetrics, Gynecology and Women's Health, University of Medicine and Dentistry of New Jersey, New Jersey Medical School, 185 South Orange Avenue, MSB E506, Newark, NJ 07103, USA.
authors.forename: Charbel
authors.initials: C
authors.lastname: Salamon
authors.forename: Carmen
authors.initials: C
authors.lastname: Tornos
authors.forename: Dennis S
authors.initials: DS
authors.lastname: Chi
mesh_terms: D001956:Broad Ligament / Q000473:pathology; D018269:Carcinoma, Endometrioid / Q000209:etiology* / Q000473:pathology; D003560:Cysts / Q000150:complications* / Q000473:pathology; D005184:Fallopian Tube Diseases / Q000150:complications* / Q000473:pathology; D005260:Female; D006801:Humans; D008875:Middle Aged