COM Dec. 2011 Diagnosis UW School of Dentistry A 9 year old boy presented for evaluation of dark spots on the tongue. The family first noted these spots 5 months prior and reported that they remained stable. Can you make a diagnosis? Oral Mucosal Melanosis IntechOpen Tiny brown spot on the lip? Don't ignore it. A melanotic macule is a small, well circumscribed brown to black oral lesion most commonly seen on the lower lip and a high yield ADC exam favourite. Melanotic macules of the tongue in a newborn Journal of the American Academy of Dermatology Labial melanotic macule. B). Increased numbers of me lanocytes along Download Scientific Diagram