Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The showing is slightly suboptimal . Lung apices are not well visualized . The LS , lung volumes are grossly unchanged compared to the prior studies . No definite pleural effusion seen . No pneumothorax or consolidation seen . Coarse interstitial markings may reflect interstitial pulmonary edema .
    OUTPUT:
    
Mild pulmonary vascular congestion . No definite consolidation seen .