Eruptive melanocytic nevi heralding the diagnosis of metastatic malignant melanoma: A case report ScienceDirect Malignant melanotic nerve sheath tumor Radiology Reference Article Radiopaedia.org Inflammation lights the way to metastasis Nature Metastatic Malignant Melanoma 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 Melanotic schwannoma mimicking metastatic pigmented melanoma: a pitfall in cytological diagnosis