Pigmented Lesions of the Oral Mucosa Pocket Dentistry Pigmented Lesions of the Oral Mucosa Springer Nature Link a Melanotic macule at the wetdry line of the lower lip. b Melanotic Download Scientific Diagram Mystery behind labial and oral melanotic macules: Clinical, dermoscopic and pathological aspects of Laugier Hunziker syndrome Happy Wednesday! , In this video, a patients labial melanotic macule (a benign pigmented lesion) is being treated with liquid nitrogen. Labial melanotic macules are flat and asymmetrical with a Peutz Jeghers syndrome: black spots localized in the perioral area. Download Scientific Diagram