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Case Reports in Obstetrics and Gynecology
Volume 2017, Article ID 3702682, 3 pages
Case Report

Ovarian Adenomatoid Tumor Coexisting with Mature Cystic Teratoma: A Rare Case Report

1Department of Pathology and Translational Pathobiology, Louisiana State University Health Science Center-Shreveport, 1501 King’s Highway, Shreveport, LA 71130, USA
2Pathology and Laboratory Medicine, Dr. Sulaiman Al Habib Medical Group, P.O. Box 505005, Dubai Healthcare City, Dubai, UAE

Correspondence should be addressed to Mingxia Shi; ude.cshusl@ihsm

Received 19 April 2017; Revised 28 July 2017; Accepted 7 August 2017; Published 11 September 2017

Academic Editor: Anna Fagotti

Copyright © 2017 Mingxia Shi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Adenomatoid tumor of the ovary is rare, and so are collision tumors in this location. The most common histological combination of ovarian collision tumors is the coexistence of mature cystic teratoma with ovarian cystadenoma or cystadenocarcinoma. Presented herein is a rare case of ovarian adenomatoid tumor found incidentally and coexisting with mature cystic teratoma. A 44-year-old woman presented with a one-year history of intermittent right-sided pelvic pain. Ultrasound evaluation revealed a heterogeneous cystic mass in the right ovary, and a clinical diagnosis of teratoma was made. The patient subsequently underwent a right salpingo-oophorectomy. Pathological examination revealed a mature cystic teratoma and coexistent adenomatoid tumor. The two tumors were separate and no transitional features were recognized histologically. To our knowledge, no previous report of coexistence of these two tumors has been reported. Both tumors are benign and completely excised; therefore no adverse consequences are expected.