Oral Pigment lesions My Doctors 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 Differential Diagnosis of Pigmented Lesions in the Oral Mucosa: A Clinical Based Overview and Narrative Review Dermoscopy of venous lake on the lips: A comparative study with labial melanotic macule PLOS One 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