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Chest HRCT. Panel A. Lung CT scan obtained before WLL (December 2008). Bilateral, diffuse ground glass of lower pulmonary lobes, with thickening of intra- and inter-lobular septa (crazy paving pattern). Panel B. Lung CT scan obtained after inhaled rGM-CSF trial (April 2010), showing a marked bilateral improvement in lower lobe involvement; nevertheless, lung density appears still increased.
