Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate intact sternal wires . The heart is moderately enlarged . Lungs are fairly well - expanded . There is indistinctness at the left heart border , which is likely related to atelectasis . However , an early developing pneumonia can not be excluded . There is no pleural effusion or pneumothorax . The visualized upper abdomen is unremarkable .
    OUTPUT:
    
No definite focal consolidation . Indistinctness at the left heart border is likely due to atelectasis . However , an early developing pneumonia can not be excluded in the right clinical setting .