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Updated: Jun 23, 2026

Microscopic Cyst Resection for the Treatment of Patients Diagnosed with Epididymal Cyst
Published on: March 31, 2023
A mesothelial-lined cyst: an unusual presentation
Mairi J Steven1, Alan Howatson, Kevin Hanretty
1Department of Surgical Pediatrics, Royal Hospital for Sick Children, Glasgow, Scotland. mairisteven@doctors.org.uk
Abstract:
A 12-year-old girl presented with a "threadlike fiber" in her underwear associated with lower abdominal pain. She denied insertion of any foreign body, and at examination under anesthetic, a threadlike substance was seen exiting her external cervical os. Her only medical history was of an open appendicectomy for perforated appendicitis. Subsequent pathologic examination showed a collapsed mesothelial cyst, and laparoscopy showed a cyst and inflammatory changes consistent with previous appendicectomy surrounding her right ovary. We review the possible causes for this most unusual presentation.
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