Metastatic oral malignant melanoma transformed from pre existing pigmented lesions in mandibular gingiva: Report of an unusual case ScienceDirect Spotty lips. These are labial melanotic macules, kinda like freckles on the lips. They are mostly due to age and sun exposure, but sometimes they run in families and are associated with Oral pathology: Noting a pigmented macule that often presents a diagnostic dilemma Registered Dental Hygienists Pigmented Lesions of the Oral Mucosa Pocket Dentistry