Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Chest , PA and lateral . Lung volumes are low due to incomplete inspiration . There is crowding of the pulmonary vasculature at the bases but no obvious consolidation . The upper lobes are clear . There is bilateral lower lobe atelectasis . Mild cardiomegaly is present . Mediastinal widening is difficult to assess given low lung volumes . There is no pneumothorax or pleural effusion . Pulmonary vascularity is normal .
    OUTPUT:
    
1 . Low lung volumes due to incomplete inspiration , with apparent widened mediastinum , possibly secondary to vascular congestion . However a repeat radiograph is recommended with complete inspiration . 2 . Mild cardiomegaly . 3 . No evidence of pneumonia or decompensated congestive heart failure .