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Focal lung pneumatosis

Health problems

A focal lung pneumatosis is a pocket of air (pneumatosis) in the parenchyma of the lungs, larger than the alveoli. A focal lung pneumatosis can be classified by its wall thickness:A bleb or bulla has a wall thickness of less than 1 mm A cyst has a wall thickness of up to 4 mm. A minimum wall thickness of 1 mm has been suggested, but thin-walled pockets may be included in the definition as well. A cavity has a wall thickness of more than 4 mm