Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral images of the chest . There are low lung volumes , with associated bronchovascular crowding . There is mild pulmonary vascular congestion , improved from prior exam . The lungs are otherwise clear . There is no pleural effusion or pneumothorax . The cardiomediastinal silhouette is unremarkable .
    OUTPUT:
    
Mild pulmonary vascular congestion , improved from prior exam . Otherwise , no acute cardiopulmonary process .