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Walk the Even Hospital Database by book and chapter — the raw source passages that ground Ask, DDx, and the rest.

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contentuptodate· Content· item f38_60_39887

©2013 UpToDate ® Print Email Left upper lobe bronchial atresia seen on an axial CT image Axial CT scan with lung window settings shows marked hyperexpansion of the left upper lobe a tubular branching hilar mass and absence of the proximal left upper lobe bronchus. Courtesy of Paul Stark, MD.