Labial melanotic macule (brown spot on lip) (Stony Brook Case 1) dermatology dermatopathology Treatment of labial melanotic macules on the lip. These are benign spots that appear on the lips for no apparent reason. The causes are mostly genetic, but similar spots can appear in smokers, after COM Jan. 2008 Diagnosis UW School of Dentistry Pigmented Oral Lesions: Clues to Identifying the Potentially Malignant Consultant360 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