Primary Umbilical Endometriosis: Unusual and Rare Clinical Presentation

Fuminori Taniguchi, Eriko Hirakawa, Yukihiro Azuma, Chihiro Uejima, Keigo Ashida, Tasuku Harada
Case reports in obstetrics and gynecology · 2016 · vol. 2016 , pp. 1–4 · doi:10.1155/2016/9302376 · PMID:27242939 · PMC4875966 · W2346504717
article OA: gold CC0 ⤵ 28 in-corpus citations
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⚙ AI-generated summary by claude@2026-06, 2026-06-09 ⓘ

This paper reports on a patient with a painful umbilical mass during menstruation, highlighting primary umbilical endometriosis as a rare diagnosis that requires complete excision and histological confirmation.

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Abstract

Primary umbilical endometriosis is a rare disorder and is defined as the presence of ectopic endometrial tissue within the umbilicus. A patient with painful mass in the umbilicus during menstrual period is studied in this paper. The possibility of subcutaneous endometriosis should be considered when an umbilical mass is detected despite the absence of previous surgery. In this case, urachal cancer, urachal remnant, umbilical endometriosis, and its malignant transformation were among the diseases considered in the differential diagnosis. Complete excision and histology are necessary to obtain a definitive diagnosis and optimal treatment for umbilical subcutaneous endometriosis.

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Condition tags

endometriosis

Citation neighborhood

Papers in the corpus that this work cites (lower rings, blue) and that cite this one (upper rings, green). Dot size scales with the paper's in-corpus citation count — bigger dot = more influential within the endo/adeno field. Click a dot to open that paper. [ expand to 2 hops ] — adds papers reached through this work's immediate citers/citees. Heavier; up to 60 extra dots.

References (13)

Cited by (28)

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