Tuberculosis of the Femur With Intramedullary Abscesses and No Pulmonary Foci in an Immunocompetent Male: A Rare Case.

Tuberculosis of the long bones/femur, especially in an immunocompetent person, is a challenging diagnosis. It is a rare entity, even in endemic settings. The non-specific clinical features, backed by a low suspicion about such presentations even in endemic settings, may result in delayed diagnosis and often unfavorable treatment outcomes. The situation becomes even more challenging in the absence of pulmonary foci and a contact history of tuberculosis. Here is a case of a young adult male who presented with complaints of pain over his left leg for three months. A diagnosis was achieved with magnetic resonance imaging and the isolation of the bacteria from a bone biopsy using a cartridge-based nucleic acid amplification test. Antituberculous treatment was promptly initiated.