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The pulmonary arteries opacify normally without filling defects to a segmental level, no pulmonary emboli detected.
Extensive interstitial changes with subpleural predominance associated with areas of traction bronchiectasis, consistent with known underlying pulmonary fibrosis. There are also patchy areas of ground-glass opacities throughout the lungs with no definite honey combing associated with mediastinal lymphadenopathies favouring NSIP over UIP.
Comparison with old imaging is strongly recommended as definite differentiation and progression is not possible. Pulmonary artery, in particular left pulmonary branch, appears enlarged most consistent with increased right heart pressure. No other abnormalities are identified.