Abstract
To assess the high-resolution computed tomography (HRCT) appearances of bronchiolitis obliterans organizing pneumonia (BOOP) after bone marrow transplantation (BMT). The HRCT scans obtained in 4 patients (2 men and 2 women, age range: 20-50 years, mean age = 36 years) with biopsy-proven BOOP after BMT were reviewed retrospectively by 2 observers for the presence, extent, and distribution of parenchymal abnormalities. All patients demonstrated consolidation and ground-glass opacity. The consolidation was bilateral, patchy, and asymmetric in all patients and was predominantly peribronchovascular in 3 patients and subpleural and peribronchovascular in 1 patient. Ground-glass opacity was patchy and asymmetric in all patients and was bilateral in 3 patients and unilateral in 1 patient. No zonal predominance of either feature could be identified. The predominant HRCT features of BOOP after BMT are bilateral, patchy, and asymmetric consolidation in a predominantly peribronchovascular distribution with associated ground-glass opacity.
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