Supernumerary ovary with an endometrioma and osseous metaplasia: a case report

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A case report describes a 32-year-old woman with endometriosis who presented with a retroperitoneal mass containing a supernumerary ovary exhibiting an endometrioma and osseous metaplasia.

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Abstract

A 32-year-old-woman with a history of endometriosis and chronic pelvic pain had left-sided pain and ultrasonographic documentation of a left pelvic complex cyst approximately 5 cm in diameter. Laparotomy revealed a left retroperitoneal cystic mass adjacent to the iliopsoas muscle and overlying the major pelvic vessels. The mass was dissected and excised. Histopathologic study revealed endometrioma and osseous metaplasia in a supernumerary ovary.

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Condition tags

endometriosisendometriomachronic_pelvic_pain

MeSH descriptors

Choristoma Endometriosis Ossification, Heterotopic Ovary Ovary Adult Choristoma Choristoma Choristoma Endometriosis Endometriosis Endometriosis Female Humans Metaplasia Ossification, Heterotopic Ossification, Heterotopic Ultrasonography

Citation neighborhood (sparse)

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Cited by (1)

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Source provenance

europepmc
last seen: 2026-09-16T06:11:32.772430+00:00
pubmed
last seen: 2026-05-13T22:11:08.331550+00:00
unpaywall
last seen: 2026-09-16T06:28:21.314993+00:00
License: public-domain-us · commercial use OK · attribution required
Courtesy of the U.S. National Library of Medicine