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Fig. 3. —Nodular fibrosis with concave margins in 67-year-old man.
Both reviewers interpreted lesion as having concave margins (arrow),
air bronchograms (arrowheads), and predominantly ground-glass
appearance on transverse high-resolution CT images. Lesion size was measured 8
mm by reviewer 1 and 8.5 mm by reviewer 2. Pathologic diagnosis was nodular
fibrosis.