Images showing clinical progression of differential hypoxia. Electrocardiogram shows depressions of the ST segment in V1 to V6 leads (A). Coronary angiography reveals a simple lesion in the left circumflex coronary artery (B). Severe pulmonary edema and bilateral pleural effusions are observed on the chest radiograph (C). Pulmonary edema was improved after veno-arterial venous extracorporeal membrane oxygenation (D).