Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-upright radiograph of the chest demonstrates low lung volumes , which results in bronchovascular crowding . The heart is markedly enlarged . There has been interval increase in size of the left - sided pleural effusion , which is now large , and is associated with collapse of the left lower lobe . Right basilar atelectasis is more mild . Perihilar opacities are most consistent with pulmonary edema . Patient is status post posterior fusion of the mid to low thoracic spine . A surgical drain is present . A left - sided subclavian central venous line ends approximately in the right atrium . A nasogastric tube courses into the stomach . The endotracheal tube ends approximately 3 .4 cm from the carina .
    OUTPUT:
    
1 . No pneumothorax . 2 . Interval increase in size of left pleural effusion , which is now large , with adjacent collapse of the left lower lobe . 3 . Moderate pulmonary edema .