Left Atrial Mass Invasion from Pulmonary Neoplasm Extension via the Right Upper Pulmonary Vein Presenting as Ipsilateral Stroke

Figure 2

Chest CT showing a large opacity with irregular borders in the right upper lobe (a), with invasion of the right upper pulmonary vein (b-c) and extension into the left atrium (d). The arrows indicate the mass along its pathway from the right upper pulmonary lobe to the left atrium (LA). Note the lack of contrast signal in the right upper pulmonary vein, obstructed by the mass. AO, aorta; DA, descending aorta; LAA, left atrial appendage; LPA, left pulmonary artery; LIPV, left inferior pulmonary vein; LUPV, left upper pulmonary vein; LV, left ventricle; MPA, main pulmonary artery; RA, right atrium; RPA, right pulmonary artery; RV, right ventricle; SVC, superior vena cava.

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