A 28-year-old unmarried promiscuous bisexual man with a history of human immunodeficiency virus (HIV) infection for past 2 years on triple drug regimen (efavirenz/emtricitabine/tenofovir disoproxil fumarate) but highly irregular, now on antituberculosis treatment (ATT) for pulmonary tuberculosis for
past 4 months, presented with linear pigmented band on right middle finger nail for past 8 months. There was no history of trauma. He denied pain or tenderness.
Otherwise he felt well and reported no other systemic symptoms except occasional dry cough. General physical and systemic examinations were unremarkable...