What Caused These Multiple Hyperpigmented Macules of the Mouth? Pigmented Lesions of the Oral Mucosa Springer Nature Link In the process of removing a Labial Melanotic Macule. A Labial Melanotic Macule is a well defined, oval, brown to black, flat patch on the central third of the lower lip, as seen 40 F. 4 mm dark brown macule on lower lip. Diagnosis? Digital slide: https: kikoxp.com posts 8019. Answer https: www.youtube.com watch?v=O2yi2ir0Ubg #pathology #pathologists #pathTwitter #dermpath #dermatology #dermatologia #dermtwitter Mystery behind labial and oral melanotic macules: Clinical, dermoscopic and pathological aspects of Laugier Hunziker syndrome Melanotic Macules, Naevi, and Melanoma Springer Nature Link