Pathology Outlines Special site nevus Melanotic macules of the tongue in a newborn Journal of the American Academy of Dermatology Pathology Outlines Melanotic macule Pathology Outlines Melanotic macule Pigmented lesions of the oral mucosa and perioral tissues: a flow chart for the diagnosis and some recommendations for the management ScienceDirect 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