Oral melanoacanthoma and oral melanotic macule: a report of 8 cases, review of the literature, and immunohistochemical analysis Labial Lentigo (labial melanotic macule) Cancer Therapy Advisor 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 Pigmented Lesions of the Oral Mucosa Springer Nature Link