Tuberculosis: epidemiology, manifestations, and the value of medical imaging in diagnosis.

摘要: 4Mycobacterial infections have been shown to be increasing in number worldwide, mainly due a global increase developing countries, the increased of patients with HIV infection and AIDS disease an elderly emergence multidrug resistant tuberculosis. Inhalation is predominant pathway Mycobacterium tuberculosis (M. tuberculosis) infection, making pulmonary most common form tuberculosis.Tuberculosis may arise either from recent M. tuberculosis, or reactivation dormant bacilli, years decades after initial infection. Extrapulmonary results tuberculous focus hematogenous dissemination lymphogenous spread primary, usually focus. Tuberculosis demonstrate variety radiological features depending on organ site involved mimick other pathologies.The final diagnosis depends detection causative organism histopathological examination, culture polymerase chain reaction-based assay for mycobacterial DNA material obtained during bronchoscopic washings, fine needle aspiration cytology (FNAC) biopsy. Key-word: Tuberculosis.