Axial Inspiratory HRCT – TLC

In reviewing the high-resolution axial CT scans taken just below the level of the corona we see that the lung parenchyma is clearly abnormal. There are areas of apparent architectural distortion and reticulation with a subpleural distribution. There is mild traction bronchiectasis, and there are areas of obvious opacity, reticulation, and volume loss, suggesting some fibrosis. Interestingly, on this inspiratory scan, we can see an area of increased density and lucency, suggesting that there may in fact be some air trapping. This is something that we'll want to take into consideration when we look at the following residual volume scans.