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. Mucosal melanocytic macules DermDx: Brown Macule on Lip Dermatology Advisor Labial melanotic macule Stock Image C057 2077 Science Photo Library A flat and oval shaped melanotic macule on the vermilion border of the Download Scientific Diagram Simple cryosurgical treatment of the oral melanotic macule Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontics