Labial melanotic macule (brown spot on lip) (Stony Brook Case 1) dermatology dermatopathology QSwitched 785 nm laser in the treatment of labial melanotic macules Gallo 2024 Skin Research and Technology Wiley Online Library Matt This patient has multiple labial melanotic macules. These are essentially freckles of the lips. These most commonly involve the lower lip. This patient had involvement of both the upper and ORAL MELANOTIC MACULE (OMM) (Also called focal melanosis labial melanotic macule) A benign, localized, flat pigmented lesion of the oral mucosa Caused by a focal increase in melanin production