PMC5964494_01
Radiologic examinations at the first visit to our hospital. (a) Chest X-ray. (b-d) Contrast-enhanced CT scan. (b) The left hilar lymph node. (c) The mass in the right lung. (d) The mass in the left lung.
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fig1
Contrast-enhanced CT revealed a cavitary mass measuring 50 mm in diameter in the right lower lobe, a mass measuring 34 mm in diameter in the left lower lobe, and an enlarged left hilar lymph node (#11) (Figure 1).
The same slice of head CT on the day of the onset of CAAE. The arrowheads show the obscureness of the corticomedullary junction. The arrows show the embolization of air bubbles. (a) Displayed with normal brain window settings (window width, 80 Hounsfield Units (HU); window level, 40 HU). (b) Displayed with mediastinal window settings (window width, 250 HU; window level, 40 HU).
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fig2
Emergency head CT revealed obscuring of the corticomedullary junction in the brain region supplied by the right middle cerebral artery (MCA) (Figure 2), and cerebral infarction was suspected. Reconstruction of the CT images using the mediastinal window settings revealed scattered air bubbles in the MCA region, based on which the patient was definitively diagnosed as having developed CAAE (Figure 2).