Black Lesion on the Tongue case 348 what's black hairy tongue? lingua villosa Nigra, tetracycline, melanosis, leucoplakia ,navi Cancer patient's tongue turned black and hairy 'after rare antibiotics reaction' The Independent Pigmented fungiform papillae, or papillary tip melanosis Registered Dental Hygienists Causes of Black Spots on Tongue Living In Well Being 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