Unusual Extensive Physiologic Pigmentation of the Tongue: A Case Report Cureus 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 Solitary pigmentation of the tongue: lentigo simplex or pigmented fungiform papilla? Can a black pigmented lesion of the oral cavity : Journal of Family Medicine and Primary Care