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 2 Immunohistochemical findings of the biopsy specimen. A: Hematoxylin and eosin staining (× 200); B: Immunohistochemical staining for human melanoma black-45 (× 200); C: Immunohistochemical staining for microphthalmia-associated transcription factor (× 200); D: Immunohistochemical staining for CD63 (× 200).

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