Benign melanocytic naevi Brown spots, especially on the lips, can be alarming to some. In some instances it can indicate rare oral mucosal melanoma, however in this case it was a non cancerous labial melanotic macule. Benign melanocytic naevi Melanocytic Nevi (Moles) Fact Sheets Yale Medicine Non Melanoma Skin Cancer This dark spot on the patients back was confirmed to be a mildly atypical compound melanocytic naevus. , What does this mean?, A mildly atypical compound melanocytic nevus is a benign