**4. COPD syndrome by tuberculosis**

Although Tuberculosis is considered as precursor in pulmonary specialty, airflow obstruction in pulmonary tuberculosis has been just considered few years ago. (Figure 1). In 1971, Snider et al had described Obstructive airway disease and pulmonary tuberculosis, and PLATINO study in Latin America has been updated this. In an environment where tuberculosis is or was common, the sequelae of tuberculosis are a major cause of chronic airflow obstruction in individuals who have never been smokers. Airway obstruction in pulmonary tuberculosis:

