Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest ___ at 21 :45 are submitted .
    OUTPUT:
    
Blunting of the left posterior costophrenic angle suggests small effusion or chronic pleural thickening . The heart remains at upper limits of normal in size given portable technique . No pulmonary edema or focal airspace consolidation to suggest pneumonia . No pneumothorax .