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Updated: Nov 18, 2025

Robot-assisted Total Mesorectal Excision and Lateral Pelvic Lymph Node Dissection for Locally Advanced Middle-low Rectal Cancer
Published on: February 12, 2022
Do Not Skip the Retroflexion: A Case of Disseminated Anorectal Mucosal Melanoma
Vibhu Chittajallu1, Carlos Roberto Simons-Linares2, Olaronke Oshilaja3
1Department of Internal Medicine, Cleveland Clinic, Cleveland, OH.
Abstract:
Less than 4% of melanomas are of mucosal origin, with primary anorectal mucosal melanomas comprising a small subset. Mucosal melanomas are often diagnosed at an advanced stage due to delay in patient presentation and obscured tumor origins leading to a more aggressive behavior and less favorable prognosis when compared with cutaneous melanomas. We present a case of metastatic anorectal mucosal melanoma with a negative colonoscopy 1 year earlier.
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