Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate low lung volumes , which accentuate bronchovascular markings . Minimal perihilar vascular congestion is noted . There is no pulmonary edema . Hilar and mediastinal silhouettes are unchanged . Moderate cardiomegaly persists . No pleural effusion or pneumothorax . Ill - defined opacities project over lower thoracic spine , best seen on the lateral view , more conspicuous since prior . There is no focal consolidation . The imaged upper abdomen is unremarkable .
    OUTPUT:
    
1 . Moderate cardiomegaly , unchanged since ___ . 2 . Minimal perihilar vascular congestion . Ill - defined opacity projecting over the lower thoracic spine on the lateral view may relate to low lung volumes , atelectasis , or less likely infection in the appropriate clinical setting .