Indian patient (mid 70s) with chief concern tongue is turning black. Swipe for more photos. These post inflammatory changes are more common in folks with more melanin in their skin. The underlying Metastatic Melanoma of the Tongue: A Rare Case Actas Dermo Sifiliogrficas Chemotherapy Induced Hyperpigmentation of the Tongue New England Journal of Medicine Mystery behind labial and oral melanotic macules: Clinical, dermoscopic and pathological aspects of Laugier Hunziker syndrome JaypeeDigital eBook Reader Congenital Melanotic Macule of the Tongue: Report of Two Cases and Literature Review Head and Neck Pathology Springer Nature Link