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A 72-year-old male. (A,B) T1 & T2 weighted MR screening of the chest; no abnormality was detected in 2005; (C,D) T1 & T2 weighted MR screening of the chest shows a nodule (arrow) in 2008. It was also shown by CT (E) and confirmed to be a bronchioalveolar carcinoma (stage I) by surgery.
