Pigmented Lesions of the Oral Cavity Pocket Dentistry ORAL MELANOSIS leading to the diagnosis of HIV infection. Despite being a weak association, any unexplained oral pigmentation in a high risk individual should make one suspect HIV associated oral melanosis and proceed Hyperpigmentation Understanding Dark Patches on Skin Oral Mucosal Melanosis IntechOpen Differential Diagnosis of Pigmented Lesions in the Oral Mucosa: A Clinical Based Overview and Narrative Review Figure 2 from Diffuse Cutaneous Melanosis Associated with Malignant Melanoma Semantic Scholar