Incisional endometriosis: an underappreciated diagnosis in general surgery1

Nirula R, Raminder Nirula, R Nirula, G C Greaney, Greaney GC, Gregory C. Greaney
Journal of the American College of Surgeons · 2000 · vol. 190(4) , pp. 404–407 · doi:10.1016/s1072-7515(99)00286-0 · PMID:10757377 · W1600796658
article OA: closed CC0 ⤵ 76 in-corpus citations
Full text JSON View on OpenAlex View on PubMed View at publisher
⚙ AI-generated summary by gemini-2.5-flash-lite, 2026-06-08 ⓘ

This retrospective review of 10 cases found incisional endometriosis in women with prior cesarean sections, typically presenting as a painful lump at the lateral incision.

One-sentence paraphrase of the abstract; not a substitute for reading it. No clinical advice. How this works

⚙ AI-generated deep summary by qwen3.7-flash, 2026-08-16 · read from full text ⓘ

This retrospective study reviewed ten cases of incisional endometriosis to identify clinical factors that might aid in preoperative diagnosis among general surgery patients. All affected individuals had a history of cesarean section and typically presented with a slow-growing, painful lump at the lateral edge of their surgical scar, although only two reported cyclic symptom changes. The authors note that the condition is frequently misdiagnosed as other masses like hernias or granulomas due to low awareness among non-gynecologic surgeons. This paper is centrally about endometriosis — specifically its rare presentation as an incisional mass following cesarean delivery.

Read from the paper's body, not the abstract. Not a substitute for reading the paper. No clinical advice. How this works

Abstract

BACKGROUND: Incisional endometriosis is a described dinical entity in the gynecologic literature, but it is not well recognized among general surgeons; only 32 cases have been reported in the general surgery literature. The preoperative diagnosis is often mistaken for a suture granuloma, lipoma, abscess, cyst, or incisional hernia. STUDY DESIGN: We performed a retrospective review of 10 cases of incisional endometriosis at our institution to determine which, if any, clinical factors would suggest the diagnosis preoperatively. All general surgery patients who had the diagnosis of endometriosis in their pathology specimens from January 1990 to December 1998 were reviewed. RESULTS: All 10 patients had previous cesarean sections through either a Pfannenstiel (n = 8) or a lower midline (n = 2) incision. Ages ranged from 27 to 41 years (mean 33.4 years). The most common presenting symptom was a slow-growing, painful lump in the lateral aspect of the Pfannenstiel incision. Two of the patients had a change in symptoms with their menstrual cycle. The duration of symptoms ranged from 2 months to 3 years. All patients underwent surgical excision. The size of the excised endometriomas ranged from 1.5 cm to 4.8 cm (mean 3.1 cm). CONCLUSIONS: Incisional endometriosis may be more common than previously recognized. In all cases it was found to occur in women with a history of cesarean section. Most patients presented with a painful, slow-growing lump at the lateral edge of their incision. Cyclic changes in pain and size of the mass with menses was elicited in only two of these patients, but this may be from a lack of awareness and questioning on the part of the physician. If the diagnosis is made preoperatively, additional diagnostic studies may be avoided. An awareness of this disease process on the part of general surgeons is necessary to guide preoperative evaluation and therapy appropriately.
Full text 2,037 characters · extracted from oa-doi-fallback · 3 sections · click to expand

Abstract

Background: Incisional endometriosis is a described clinical entity in the gynecologic literature, but it is not well recognized among general surgeons; only 32 cases have been reported in the general surgery literature. The preoperative diagnosis is often mistaken for a suture granuloma, lipoma, abscess, cyst, or incisional hernia. Study Design: We performed a retrospective review of 10 cases of incisional endometriosis at our institution to determine which, if any, clinical factors would suggest the diagnosis preoperatively. All general surgery patients who had the diagnosis of endometriosis in their pathology specimens from January 1990 to December 1998 were reviewed.

Results

All 10 patients had previous cesarean sections through either a Pfannenstiel (n = 8) or a lower midline (n = 2) incision. Ages ranged from 27 to 41 years (mean 33.4 years). The most common presenting symptom was a slow-growing, painful lump in the lateral aspect of the Pfannenstiel incision. Two of the patients had a change in symptoms with their menstrual cycle. The duration of symptoms ranged from 2 months to 3 years. All patients underwent surgical excision. The size of the excised endometriomas ranged from 1.5 cm to 4.8 cm (mean 3.1 cm).

Conclusions

Incisional endometriosis may be more common than previously recognized. In all cases it was found to occur in women with a history of cesarean section. Most patients presented with a painful, slow-growing lump at the lateral edge of their incision. Cyclic changes in pain and size of the mass with menses was elicited in only two of these patients, but this may be from a lack of awareness and questioning on the part of the physician. If the diagnosis is made preoperatively, additional diagnostic studies may be avoided. An awareness of this disease process on the part of general surgeons is necessary to guide preoperative evaluation and therapy appropriately.

Text is read by the "Ask this paper" AI Q&A widget below. Extraction quality varies by source — PMC NXML preserves structure cleanly, OA-HTML may include some navigation residue, and OA-PDF can have broken hyphenation. The publisher copy (via DOI) is the canonical version.

My notes (saved in your browser only)

⚙ Ask this paper AI returns verbatim quotes from the full text · source: oa-doi-fallback ⓘ

Answers must be backed by verbatim quotes from this paper's full text. Hallucinated quotes are dropped automatically; if no verbatim passage answers the question, we say so. How this works

Condition tags

endometriosis

MeSH descriptors

Cesarean Section Endometriosis Postoperative Complications Adult Endometriosis Endometriosis Female Humans Retrospective Studies

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 (19)

Cited by (50)

Source provenance

europepmc
last seen: 2026-09-13T06:11:40.775766+00:00
openalex
last seen: 2026-06-10T17:14:06.276822+00:00
pubmed
last seen: 2026-05-13T22:13:41.710148+00:00
unpaywall
last seen: 2026-09-13T06:26:10.529621+00:00
License: CC0 · commercial use OK