Charcoal Peritonitis Causing Chronic Pelvic Pain: A Unique Complication Following Bariatric Surgery

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AI-generated summary by gemini-2.5-flash-lite, 2026-08-08

A patient's chronic pelvic pain, initially suspected to be endometriosis, was found to be caused by charcoal peritonitis from gastric lavage following Roux-en-Y gastric bypass surgery.

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Abstract

Routine pathologic examination of a specimen transformed a common diagnosis of endometriosis into a search for an unusual cause of recurrent pelvic pain. Laparoscopy was suspicious for endometriosis, but instead on microscopic examination a black pigment of unknown origin was present. In a subsequent interview with her gynecologist the 38-year-old patient divulged a previous Roux-en-Y gastric bypass (RYGBP), followed 8 weeks later by a suicide attempt by overdosing on medication, treated with charcoal gastric lavage. Her tiny gastric pouch was perforated and she developed charcoal peritonitis. If the emergency room physicians had been aware of her recent RYGBP, they may not have performed the lavage, and if the gynecologist had been aware of the history, she may not have been incorrectly diagnosed endometriosis.

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Condition tags

chronic_pelvic_pain

MeSH descriptors

Antidotes Charcoal Gastric Bypass Pelvic Pain Peritonitis Postoperative Complications Adult Antidotes Charcoal Female Gastric Lavage Gastric Lavage Humans Obesity, Morbid Obesity, Morbid Pelvic Pain Peritonitis Peritonitis Peritonitis Stomach Rupture

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europepmc
last seen: 2026-08-14T06:11:53.302379+00:00
openalex
last seen: 2026-06-04T00:00:01.174412+00:00
pubmed
last seen: 2026-05-13T22:15:12.369988+00:00
License: CC0 · commercial use OK