Labial or Oral Melanotic Macule Benign, asymptomatic, and often underdiagnosed. Swipe to learn how to recognize, diagnose, and manage this simple yet important lesion! #thebasicdentist #rguhs #kuhs #tnmgrmu #OralPathology #MelanoticMacule #DentalFacts Oral pathology: Noting a pigmented macule that often presents a diagnostic dilemma Registered Dental Hygienists Mucosal melanocytic macules 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.