Pulmonary bullae

Pulmonary bullae are focal regions of emphysema with no discernible wall which measure more than 1 cm in diameter 1-2. Some use the term pulmonary bleb for a 1-2 cm lesion, whereas others use both the terms bleb and bulla interchangeably. They are often subpleural in location and may result in spontaneous pneumothoraces.

In some cases, bullae can be very large and result in compression of adjacent lung tissue.

Location-specific subtypes

See also

Share article

Article information

rID: 9203
System: Chest
Tag: stub
Synonyms or Alternate Spellings:
  • Bullae
  • Bulla
  • Pulmonary bulla
  • Pulmonary bullus
  • Bullus
  • Bullous spaces

Support Radiopaedia and see fewer ads

Cases and figures

  • Drag
    Case 1: subpleural bullae
    Drag here to reorder.
  • Drag
    Case 2
    Drag here to reorder.
  • Drag
    Case 3: causing spontaneous pneumothorax
    Drag here to reorder.
  • Updating… Please wait.

    Alert accept

    Error Unable to process the form. Check for errors and try again.

    Alert accept Thank you for updating your details.