Borderline endometrioid tumor arising in a paratubal cyst: a case report.
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.
Salamon
Charbel
C
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.
Tornos
Carmen
C
Chi
Dennis S
DS
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