High-resolution CT Findings of Bronchiolitis Obliterans Syndrome After Hematopoietic Stem Cell Transplantation

Abstract

In BOS developing after HSCT, air trapping is the principal finding on CT, and its severity correlates with PFTs. Bronchial wall thickening is common, but almost always mild; bronchiectasis and centrilobular opacities occur in less than half of cases and are also mild.