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 ...
Background: Idiopathic spontaneous pneumothorax (ISP) results from rupture of blebs, bullas, or diseased alveolar walls. Initiating mechanisms may relate to increased transpulmonary pressure.
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