Residual anorectal malignant melanoma presenting as polyp-like lesion detected during colonoscopic withdrawal observation: A case report and review of literature

doi:10.12998/wjcc.v14.i10.119456

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World Journal of Clinical Cases

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2307-8960

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Baishideng Publishing Group Inc, 7041 Koll Center Parkway, Suite 160, Pleasanton, CA 94566, USA

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Copyright: ©Author(s) 2026. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial (CC BY-NC 4.0) license. No commercial re-use. See permissions. Published by Baishideng Publishing Group Inc.

World J Clin Cases. Apr 6, 2026; 14(10): 119456
Published online Apr 6, 2026. doi: 10.12998/wjcc.v14.i10.119456

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Figure 1 Colonoscopy findings. A: Slightly coarse mucosa at the prior anal canal surgical scar; B: Additional view of slightly coarse mucosa at the prior anal canal surgical scar (arrow); C: Narrow-band imaging showing features consistent with National Institute for Health and Care Excellence (NICE) type 1 classification (arrow); D: Additional view of features consistent with NICE type 1 classification.

Citation: Li YX, Guo LJ. Residual anorectal malignant melanoma presenting as polyp-like lesion detected during colonoscopic withdrawal observation: A case report and review of literature. World J Clin Cases 2026; 14(10): 119456
URL: https://www.wjgnet.com/2307-8960/full/v14/i10/119456.htm
DOI: https://dx.doi.org/10.12998/wjcc.v14.i10.119456