Inflammation lights the way to metastasis Nature New Research Helps Identify Uveal Melanomas Most Likely to Spread to the Liver 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 Brain metastases as primary manifestation of a melanocytic malignant peripheral nerve sheath tumor in a 60 year old man BMC Neurology Springer Nature Link