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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 f24_49_25375

©2013 UpToDate ® Print Email Bilateral mediastinal lymph node enlargement in lung cancer Peripheral left upper lobe bronchogenic carcinoma with amorphous central calcification. Aortopulmonary window (long arrow), contralateral pretracheal, and retrocaval lymph nodes (short arrow), indicating N3 disease. Courtesy of Paul Stark, MD.