PMC9712710_01
Computed tomography shows pleural effusion (A) and angiography shows superior vena cava occlusion (B). Balloon dilatation was performed (C) and pleural effusion no longer appeared after 4 months (D).
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F1
China) on 11 January 2021, and discharged on 21 January 2021. Computed tomography (CT) of the chest showed bilateral pleural effusion (Figure 1A), which was later tested to be chylous fluid (Table 1). Subsequent CT venography and digital subtraction angiography showed occlusion of the superior vena cava (Figure 1B) and extensive venous collateral vessels within the lower neck and superior mediastinum. On 24th February, percutaneous balloon dilatation was performed to recanalize the superior vena cava (Figure 1C). Chest CT showed no pleural effusion (Figure 1D).