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What is the differential of chronic crazy paving pattern?
pulmonary alveolar proteinosis cryptogenic organising pneumonia cellular NSIP pattern adenocarcinoma lymphangitis carcinomatosis sarcoidosis
- prior oesophagectomy with anterior mediastinal pull through
- interstitial and ground glass opacities in a dependent distribution
- this gives a characteristic "crazy paving" appearance
- chronic small left pleural thickening
- confluent airspace opacities in the LUL, lingula, and LLL