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Elastofibroma of the sigmoid colon
T Sakatani1, K Shomori, H Adachi
1First Department of Pathology, Faculty of Medicine, Tottori University, Yonago/Tottori, Japan. yoppa@grape.med.tottori-u.ac.jp
Pathology, Research and Practice
|March 24, 2000
Summary
A rare case of elastofibroma was found in the sigmoid colon. This benign tumor may develop from long-term fibrosis following endoscopic polyp removal.
Area of Science:
- Gastroenterology
- Surgical Pathology
Background:
- Elastofibroma is a rare, benign mesenchymal tumor typically found in the subscapular region.
- Its occurrence in the sigmoid colon is exceptionally rare, presenting diagnostic challenges.
Observation:
- A 69-year-old woman underwent gastrointestinal survey due to unspecified symptoms.
- Colonoscopy revealed two sigmoid colon polyps; one was suspected to be a recurrent adenoma.
Findings:
- Histological examination of the polyp showed characteristic eosinophilic fibers and globules.
- These materials stained positively for elastin and were digested by elastase, confirming elastofibroma.
- The lesion's features suggest it may be a result of chronic fibrosis post-endoscopic resection.
Implications:
- This case expands the known anatomical locations for elastofibroma.
- It highlights the importance of considering elastofibroma in the differential diagnosis of sigmoid colon polyps, especially after prior endoscopic procedures.
- Suggests a potential link between prior endoscopic resection and the development of elastofibroma in the colon.