Diagnostic yield of CBNAAT in the diagnosis of extrapulmonary tuberculosis: A prospective observational study.

Background: Extrapulmonary Tuberculosis (EPTB) accounts for 15%-53% of all TB cases. In recent years, cartridge-based nucleic acid amplification test (CBNAAT) has emerged as an important diagnostic tool since the diagnostic yield is higher. We conducted this study to evaluate the diagnostic yield of CBNAAT in EPTB.