[Extrathoracic tuberculosis]

Incidence of extrathoracic tuberculosis has increased these last years. The average time to diagnosis is 3 months, owing to the poor specificity of some of its clinical signs, but also the failure to evoke these infections. Most common localizations are lymph nodes, bones and joints, genitourinary track and more rarely neuromeningeal or digestive systems. Diagnosis is based on bacteriological data (traditional culture, polymerase chain reaction) and histology. Computed tomography and magnetic resonance imaging are effective to detect the lesions at an early stage and appreciate their extent. Delayed diagnosis is responsible for mortality and sequelae of this affection for which treatment is effective, if it is correctly managed and followed.