Pulmonary bullae

Pulmonary bullae are rounded focal regions of emphysema with a thin wall which measure more than 1 cm in diameter. They are often subpleural in location and are typically larger in the apices. In some cases, bullae can be very large and result in compression of adjacent lung tissue. A giant bulla is arbitrarily defined as one that occupies at least one third of the volume of a hemithorax. When large, bullae can simulate pneumothorax. The most common cause is paraseptal emphysema but bullae may also be seen in association with centrilobular emphysema. Blebs and bullae are commonly subpleural and are mostly seen in both upper lobes in patients with coexisting centrilobular and paraseptal emphysema.

http://purl.obolibrary.org/obo/HP_0032446

Blebs and bullae are commonly subpleural and are mostly seen in both upper lobes in patients with coexisting centrilobular and paraseptal emphysema.

https://orcid.org/0000-0002-0736-9199

2019-03-03T17:45:09Z

Pulmonary bullae are rounded focal regions of emphysema with a thin wall which measure more than 1 cm in diameter. They are often subpleural in location and are typically larger in the apices. In some cases, bullae can be very large and result in compression of adjacent lung tissue. A giant bulla is arbitrarily defined as one that occupies at least one third of the volume of a hemithorax. When large, bullae can simulate pneumothorax. The most common cause is paraseptal emphysema but bullae may also be seen in association with centrilobular emphysema.

Pulmonary bullae

Pulmonary bulla

HP:0032446

Pulmonary bulla

http://purl.obolibrary.org/obo/HP_0002097