Pulmonary bullae 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 may result in spontaneous pneumothoraces.
In some cases, bullae can be very large and result in compression of adjacent lung tissue.
- 1. Stern EJ, Frank MS. CT of the lung in patients with pulmonary emphysema: diagnosis, quantification, and correlation with pathologic and physiologic findings. AJR Am J Roentgenol. 1994;162 (4): 791-8. AJR Am J Roentgenol (abstract) - Pubmed citation
- 2. Collins J, Stern EJ. Chest radiology, the essentials. Lippincott Williams & Wilkins. (2007) ISBN:0781763142. Read it at Google Books - Find it at Amazon
- 3. Shields TW. General Thoracic Surgery. Lippincott Williams & Wilkins. (2009) ISBN:0781779820. Read it at Google Books - Find it at Amazon
- 4. Hansell DM, Bankier AA, Macmahon H et-al. Fleischner Society: glossary of terms for thoracic imaging. Radiology. 2008;246 (3): 697-722. Radiology (full text) - doi:10.1148/radiol.2462070712 - Pubmed citation