Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Allowing for changes in position , there is no gross change in the position of the prosthetic aortic valve . There has been interval removal of a left - sided PICC line . There is severe dextroscoliosis of the thoracic spine , without significant interval change compared to prior examination . There is a tortuous and calcified thoracic aorta which is stable in appearance . Evaluation of the cardiac silhouette is limited given low lung volumes and rotation / positioning , however there is no appreciable change as compared to prior examination . Persistent elevation of left hemidiaphragm and secondary relaxation atelectasis of left lower lobe as seen on prior studies . There has been marked interval improvement in pulmonary vascular congestion as well as improvement in previously seen bibasilar opacities as compared to prior film . There are faint calcifications visualized in the medial right upper lobe which correlate to calcifications seen in the right subclavian artery on prior CT examination . There are no pneumothoraces or effusions seen .
    OUTPUT:
    
No evidence of pleural effusion . Marked improvement in pulmonary vascular congestion ; no other significant interval change .