This is a very rare case of metastatic oral mucosal melanoma to the colon with an unusual presentation mimicking melanosis coli. The colonoscopy findings show no mass effect but multiple hyperpigmented lesions A practical approach to borderline melanocytic neoplasms CAP TODAY Rare malignant melanotic nerve sheath tumors of the upper limb nerves: utility of high frequency ultrasonography in preoperative imaging Skeletal Radiology Springer Nature Link Treatment of Melanoma Metastasis: Surgical, Chemotherapy, and Innovation Understanding Melanoma: Treatment Options for Stage IV Melanoma Malignant melanotic nerve sheath tumor with PRKAR1A, KMT2C and GNAQ mutations