Painful nodule in the caesarean section scar of a young woman

Veronica A Russo, Ali Alikhan
Dermatology online journal · 2015 · vol. 21(11) · doi:10.5070/d32111029301 · PMID:26632937 · W2213007791
article OA: hybrid CC0 ⤵ 2 in-corpus citations
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⚙ AI-generated summary by claude@2026-06, 2026-06-07 ⓘ

This case report describes scar endometriosis, a rare form of ectopic endometrial tissue implantation, found in a 35-year-old woman's caesarean section scar.

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⚙ AI-generated deep summary by claude@2026-06, 2026-06-07 ⓘ

This paper reports a case of scar-associated cutaneous endometriosis in a 35-year-old woman with a 3.5-year history of an enlarging, intermittently tender nodule within a prior Pfannenstiel caesarean section scar, which began about 6 months after the procedure and waxed and waned before rapidly enlarging. Physical examination showed a dark brown, firm, mobile tender nodule with a small translucent papule, and punch biopsy demonstrated endometrial-type glands in the dermis with mucinous/edematous stroma, consistent with cutaneous endometriosis in that surgical-scar context. Pre-surgical MRI identified additional abdominal wall endometriomas, and exploratory laparotomy with resection of multiple lesions was followed by an unremarkable postoperative course; the main limitation is that this is a single case report. This paper is centrally about endometriosis — it details cutaneous endometriosis arising in a caesarean scar and includes imaging for coexisting abdominal wall disease.

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Abstract

Endometriosis is the presence of ectopic endometrial tissue outside the uterus and cutaneous endometriosis is a rare manifestation of this disease that may be found at the sites of surgical scars as a result of iatrogenic implantation. Herein we present a case of scar endometriosis in a 35-year-old woman. The scar was sustained following a remote caesarean section.

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Condition tags

mesh:D004715endometriosis

MeSH descriptors

Cesarean Section Cicatrix Endometriosis Skin Diseases Subcutaneous Tissue Adult Cesarean Section Cicatrix Endometriosis Endometriosis Female Humans Pregnancy Skin Diseases Skin Diseases Subcutaneous Tissue Subcutaneous Tissue

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 (7)

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License: CC0 · commercial use OK