Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable view of the chest is compared to prior exam from ___ . There is persistent blunting of lateral costophrenic angles suggesting at least some component of pleural effusion , although given differences in positioning and technique they do appear smaller when compared to prior . There is persistent pulmonary vascular engorgement with indistinct vascular markings . Cardiac silhouette is grossly unchanged . Osseous and soft tissue structures are unremarkable .
    OUTPUT:
    
Apparent interval improvement of the bilateral pleural effusions with persistent interstitial markings bilaterally suggestive of failure ; however , bilateral pneumonia could also be considered in this clinical setting .