Ch22: Pigmentations of the Oral Mucosa and Facial Skin Melanocytic nevi and melanomas of the oral mucosa: detailed description of a case series Anais Brasileiros de Dermatologia Pigmented Lesions of the Oral Mucosa Springer Nature Link An oral melanotic macule is a harmless dark spot found on the lip, most often the lower lip, or inside the mouth, either on the gums, inside the cheek, or on the roof of the mouth. An oral melanotic Dark pigmentation in the oral cavity Clinical Advisor