Tuberculous pleurisy

Tuberculous pleurisy is a common extrapulmonary tuberculosis disease in clinical practice, and it is pleural inflammation caused by Mycobacterium tuberculosis and its metabolic products entering the pleural cavity in a state of hypersensitivity. The pathogenesis of tuberculous pleurisy is closely related to Mycobacterium tuberculosis infection and the body's immune status. Tuberculous pleurisy belongs to type V among the five major types of pulmonary tuberculosis. Although it is not a pulmonary lesion, it is closely related to pulmonary tuberculosis in clinical practice. Tuberculous pleurisy is an exudative inflammation caused by tubercle bacilli directly invading the pleura from a primary lesion adjacent to the pleura, or spreading to the pleura via lymphatic or hematogenous dissemination. The main clinical manifestations include fever, cough with ipsilateral chest pain, and dyspnea. It is commonly seen in children over 3 years of age, mainly occurring within 6 months of primary infection. The primary lesion is usually located in the ipsilateral lung and is often undetectable. The onset is related to the child's high sensitivity to tubercle bacilli. Tuberculous pleurisy is pleural inflammation caused by Mycobacterium tuberculosis infection. Clinically, it is often classified into three types: dry pleurisy, exudative pleurisy, and tuberculous empyema.