[State of the art: sequelae of tuberculosis].

Sequela of tuberculosis (TB sequela) is defined as the state with various secondary complications after healing of TB, such as chronic respiratory failure (CRF), cor pulmonale or chronic pulmonary inflammation. Pathophysiology of TB sequelae is consisted of disturbed pulmonary function, CRF, sleep disorder and pulmonary hypertension. In addition, secondary pulmonary infection with mycosis or nontuberculous mycobacteriosis (NTM) is difficult to be controlled.