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 Mystery behind labial and oral melanotic macules: Clinical, dermoscopic and pathological aspects of Laugier Hunziker syndrome The Pigmented Hard Palate: A Long Term Outcome of Imatinib Actas Dermo Sifiliogrficas Congenital Melanotic Macule of the Tongue: Report of Two Cases and Literature Review Head and Neck Pathology Springer Nature Link Oral Mucosal Melanosis IntechOpen Dentistry and Medicine: Pigmentation and Discoloration of Oral and Facial Tissues