URL of Article. Pulmonary bullae (singular: bulla) are focal regions of emphysema with no discernible wall which measure more than 1 or 2 cm in diameter 1-2 . Some use the term pulmonary bleb for a similar lesion less than 1 or 2 cm, whereas others use both the terms bleb and bulla interchangeably. They are often subpleural in location and are typically larger in the …

Bullous emphysema is also known as vanishing lung syndrome. It is most often treated by surgical removal of the bulla, which can grow to 20 centimeters—more than a foot—in diameter. A bulla that takes up a third or more of the space in and around the …

Bulla quoyii Gray in Dieffenbach, 1843 brown bubble shell. Distribution: Southern Australia, northern New Zealand. Length: 44 mm-60 mm. Description: The calcified shell has a gray-brown color, with blotches of various shades of brown; the snail has a bright honey-golden color.

Bullae can range in size from 1 to 20 cm. Doctors refer to large bullae as giant bullae, which may take up a third or more of the space in and around the affected lung.

The plural form of bulla is bullae. The blister must be greater than 0.5 centimeters (5 millimeters) in diameter to be categorized as a bulla. Vesicles are …

A single bulla is a rarity: they vary in size from that of a large vesicle to that of a large grape fruit. There are two views as to the formation of bullae: both believe bullae to be the result of the increased intra-alveolar pressure that is present. The distinction between bullae and blebs has been stressed. Bullae are by no means innocuous.

In some patients bullae give rise to progressive dyspnea or chest pain (Fig. 52-3A,B). 12 On occasion, a patient with bullous lung disease develops sudden, severe breathlessness secondary to development of a spontaneous pneumothorax 13 or sudden increase in bulla size due to air trapping. In patients with known bullous disease infection in a ...

1. a circumscribed, fluid-containing, elevated lesion of the skin, usually more than 5 mm in diameter. Called also blister and bleb. 2. an anatomical structure with a blisterlike appearance. adj., adj bul´late, bul´lous.

bulla: thin wall (<1 mm), usually considered larger than blebs (>1 or 2 cm) pulmonary cyst: wall thickness 1-3 mm; pneumatocele: deeper within the lung