PMC9887544_01
Axial Computed Tomography (CT) in lung window demonstrating multiple lung nodules (A). Magnified local view (B) of the segment framed red in (A) for accurate needle placement with a 15mm core biopsy needle (red arrow) within one of the largest cluster of nodules located peripherally in the right lower lobe.
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FIG1
Three passes were made with three cores of tissue obtained. The target lesion was relatively peripheral in location and distant from any interlobular fissure, visible large airway or pulmonary vessel (Figure 1).
Unenhanced axial computed tomography (CT) brain demonstrating a few isolated air locules (green and red arrows) predominantly around the left anterior cerebral artery (green) - middle cerebral artery (red) watershed region.
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FIG2
An emergent CT examination of his head performed on admission as part of his stroke screen demonstrated tiny locules of gas in the subarachnoid vessels along the left cerebral convexity, predominantly around the left anterior cerebral artery-middle cerebral artery (ACA-MCA) watershed region (Figure 2).
Magnetic resonance imaging (MRI) brain diffusion-weighted imaging (DWI) sequence showing gyriform foci of restricted diffusion in keeping with acute watershed infarcts as a result of earlier cerebral air emboli.
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FIG3