Today’s Morning Report from second-year fellow Elen Gusman featured a case of dyspnea with HRCT and PFT findings of air trapping without other parenchymal abnormalities. Below are some of the take-away points from her engaging discussion.
Air trapping – areas of lung parenchyma with less than normal increase in attenuation and lack of volume reduction with expiration (Fleischner Society, 2008)
Image – isolated air trapping due to bronchiolitis obliterans Source: Annals ATS 2014; 11(6):874-881
Expiratory findings:
- Heterogenous hypoattenuation (air trapped) alongside hyperattenuation (normal ventilation)
- Areas of air trapping do not decrease in volume like adjacent normal lung
