ArticleBMC gastroenterology2021
Multiple non-polypoid mucosal Schwann cell hamartomas presenting as edematous and submucosal tumor-like lesions: a case report.
Article in BMC gastroenterology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 8 citations in OpenAlex.
- Intestinal mucosal Schwann cell hamartoma.Discover oncology · 2026Article
- Multiple mucosal Schwann cell hamartomas of the gallbladder in a patient with pancreaticobiliary maljunction and chronic pancreatitis: A case report.SAGE open medical case reports · 2026Article
- Mucosal Schwann Cell Hamartoma of the Appendix: Expanding the Differential for Gastrointestinal Bleeding.ACG case reports journal · 2025Article
- A case description of mucosal Schwann cell hamartoma, which, as an unusual neoplasm, was removed using the standard cold snare polypectomy method.Quantitative imaging in medicine and surgery · 2025Article
- Schwann Cell Hamartoma Presenting as a Colonic Polyp: A Rare Case Report With a Literature Review.Cureus · 2024Article
- A Rare Case of Schwann Cell Hamartoma in the Duodenum.ACG case reports journal · 2022Article
- Nonpolypous Hamartomas of the Gastrointestinal Tract: An Updated Review on Classification, Denominations, and Clinical Management.Journal of oncology · 2022Review
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundMucosal Schwann cell hamartomas are rare neurogenic tumors which present most commonly in the distal colon. They are usually discovered as small, single polyps in asymptomatic patients. CASE PRESENTATION: An asymptomatic 64-year-old man was referred to us after a 12 mm subepithelial lesion was discovered incidentally on screening colonoscopy. Follow-up colonoscopy conducted 2 months later revealed that the tumor had disappeared, leaving multiple edematous, submucosal tumor-like elevations presenting as skip lesions throughout the sigmoid colon. Lesions had elongated pits on magnifying endoscopy and were limited to the first layer on endoscopic ultrasound. Biopsies revealed unclearly delineated foci of spindle-shaped cells limited to the lamina propria. On immunohistochemistry, all lesions were positive for S-100 protein and negative for CD34, CD56, and neurofilament protein. The patient was diagnosed with multiple mucosal Schwann cell hamartomas of the sigmoid colon. He remains asymptomatic after 18 months of follow-up, but the lesions have also remained unchanged.
conclusionWe report a case of multiple non-polypoid mucosal Schwann cell hamartomas. Endoscopic findings may assist in the differential diagnosis, particularly when presenting as non-polypoid, submucosal tumor-like lesions.
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