PMC4899805_01
28-year-old man with needle embolism. Frontal and lateral radiographs of the chest demonstrate a thin linear radiodensity in the right midlung.
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He immediately presented to a community emergency department, where chest radiographs demonstrated a needle in the right lung (Fig. 1).
28-year-old man with needle embolism. Multiplanar reconstruction CT of the chest in lung windows (WL/WW -500/1400) shows the thin linear radiodensity extending from a segmental pulmonary artery into peripheral lung parenchyma (arrow).
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Upon transfer to our institution, a CT of the chest confirmed the presence of a needle in the lateral segment of the right lower lobe with both intravascular and intraparenchymal components (Fig. 2).
PMC4899805_02
28-year-old man with needle embolism. Axial image from pulmonary embolism protocol CT of the chest in bone windows (WL/WW 300/1500) demonstrates a linear radiodensity within an irregular consolidation in the peripheral right middle lobe (arrow).
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A CT pulmonary angiogram revealed a linear metallic object with surrounding irregular consolidation in the peripheral right middle lobe (Fig. 3).
28-year-old man with needle embolism. Frontal radiograph of the chest, A, Full field of view. B. 10X enlargement of right lung region of interest reveals a linear radiodensity in the right mid-lung (arrow) with faint surrounding consolidation.
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A concurrent chest radiograph confirmed the presence of a needle (Fig. 4).