Melanotic schwannoma mimicking metastatic pigmented melanoma: a pitfall in cytological diagnosis Diffuse cutaneous melanosis: rare complication of metastatic melanoma * ScienceOpen 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 CT scan showing metastatic recurrence of melanotic schwannoma in the Download Scientific Diagram