Melanocytic Lesions A Guide to Clinical Differential Diagnosis of Oral Mucosal Lesions Continuing Education Course dentalcare.com PT 141 Bremelanotide Research Spartan Peptides PT 141 10mg Cellpept Research PT 141 Peptide for Sexual Wellness, Libido & Confidence Elase 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