Spontaneous Cutaneous Endometriosis of the Umbilicus: A Case Report

Katherine Braunlich, Gregory R. Delost, Kord Honda, Jenifer R. Lloyd
In: Journal of Rare Disorders: Diagnosis & Therapy · 2017 · vol. 03(01) · doi:10.21767/2380-7245.100058 · W2615614869
article OA: diamond CC0 ⤵ 2 in-corpus citations
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⚙ AI-generated summary by claude@2026-06, 2026-06-09 ⓘ

This case report describes a 30-year-old woman with spontaneous umbilical cutaneous endometriosis characterized by cyclical pain, bleeding, and nodule growth, confirmed by biopsy showing endometrial glands with cilia.

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Abstract

Cutaneous endometriosis represents an unusual ectopic growth of endometrial tissue outside the uterine cavity. We present a case of spontaneous (primary) cutaneous endometriosis of the umbilicus with review of the appropriate literature. Our patient is a 30-year-old African American female, with no previous surgical history, who presented to our dermatology clinic with concern regarding nodules in her umbilicus. According to the patient, the nodules were associated with cyclical pain, episodic bleeding and fluctuation in size. Dermatological examination revealed multiple 5-6 mm reddish-blue, dome shaped papules within the umbilicus. Following shave biopsy, histological examination revealed endometrial glands surrounded by fibrotic, mucinous stroma and erythrocyte extravasation with hemosiderin deposition. Also identified, were ductal structures with cilia on the internal lining. The lesions were diagnosed as cutaneous endometriosis with cilia. The patient was referred to plastic surgery for local excision and gynecology for assessment of endometriosis in the pelvic cavity.

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Condition tags

endometriosis

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