Pigmented Lesions of the Oral Mucosa Pocket Dentistry Pigmented Lesions of the Oral Cavity Oral and Maxillofacial Surgery Clinics Figure 1 from Oral melanotic macule a case report. Semantic Scholar 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. Clinical features of oral pigmented lesions: ( ) Nevus, ( ) melanotic Download Scientific Diagram