Oral Mucosal Melanosis IntechOpen 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 Figure 1 from HIV Associated Oral Mucosal Melanin Hyperpigmentation: A Clinical Study in a South African Population Sample Semantic Scholar Figure 2 from Diffuse Cutaneous Melanosis Associated with Malignant Melanoma Semantic Scholar