Labial Lentigo (labial melanotic macule) Cancer Therapy Advisor Figure 225 from Pigmentations of the Oral Mucosa and Facial Skin Semantic Scholar 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 melanotic macule or non cancerous hyperpigmentation of a mucous? What is this? Pigmentation? Hlp : r askdentists Pigmented Lesions of the Oral Mucosa Pocket Dentistry