Pulmonary bullae are focal regions of emphysema with no discenible wall which measure more than 1cm in diameter 1-2. Some would use the term pulmonary bleb for a 1-2 cm lesion, whereas others would use the terms bleb and bulla interchangeably. They are often subpleural in location and may result in spontaneous pneumathoraces.
In some cases bullae can be very large and result in compression of adjacent lung.
Location specific sub types
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Synonyms & Alternative Spellings
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