A pulmonary bleb is a small collection of air between the lung and the outer surface of the lung (visceral pleura) usually found in the upper lobe of the lung. When a bleb ruptures the air escapes ...

A pleurectomy is a surgical procedure to remove part or all of the pleura, a membrane that lines the lungs and chest cavity. The procedure treats empyema — an infection of the pleural cavity — and ...

Pneumothorax, commonly called a collapsed lung, can be painful and in certain situations, may be life-threatening. In a healthy body, the lungs are touching the walls of the chest. A pneumothorax ...

Hawes — President, Boston Tuberculosis Association. Stone — Examiner in the Tuberculosis Clinics, Boston Health Department. For records and addresses of authors see "This Week's Issue", page 376.