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 Oral hyperpigmentation Clinical Advisor Differential Diagnosis of Pigmented Lesions in the Oral Mucosa: A Clinical Based Overview and Narrative Review Differences among Dermoscopic Findings in Riehl's Melanosis of the Cheek and Neck Dermatologic Look Alikes: Hyperpigmented Patches on Face and Neck Dermatology Advisor Hyperpigmentation SkinEthos Clinic Natural, Plant Based & Non Invasive Integrative Skin Clinic Singapore