Preferred Label : bulla;
Definition : Pathology.—An airspace measuring more than 1 cm—usually several centimeters—in diameter,
sharply demarcated by a thin wall that is no greater than 1 mm in thickness. A bulla
is usually accompanied by emphysematous changes in the adjacent lung. (See also bullous
emphysema.) Radiographs and CT scans.—A bulla appears as a rounded focal lucency or
area of decreased attenuation, 1 cm or more in diameter, bounded by a thin wall (Fig
16). Multiple bullae are often present and are associated with other signs of pulmonary
emphysema (centrilobular and paraseptal). [Fleischner Society];
Source : Fleischner Society;
Origin ID : RID28502;
Automatic exact mappings (from CISMeF team)
- Currated CISMeF NLP mapping
- Bulla [ICD-11 More detail]
Pathology.—An airspace measuring more than 1 cm—usually several centimeters—in diameter,
sharply demarcated by a thin wall that is no greater than 1 mm in thickness. A bulla
is usually accompanied by emphysematous changes in the adjacent lung. (See also bullous
emphysema.) Radiographs and CT scans.—A bulla appears as a rounded focal lucency or
area of decreased attenuation, 1 cm or more in diameter, bounded by a thin wall (Fig
16). Multiple bullae are often present and are associated with other signs of pulmonary
emphysema (centrilobular and paraseptal). [Fleischner Society]
