Pathology Outlines Metastatic melanoma Intracranial metastatic melanoma Radiology Reference Article Radiopaedia.org Diffuse melanosis cutis: a rare manifestation of metastatic melanoma BMJ Case Reports 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 Understanding Melanoma: Treatment Options for Stage IV Melanoma