Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate low lung volumes without pleural effusion , focal consolidation or pneumothorax . The hilar and mediastinal silhouettes are unremarkable . A mild interstitial pulmonary abnormality could be acute , either edema or interstial pneumonia , but since there is a suggestion of a milder interstitial abnormality in ___ , this may be the progression or recurrence of a longstanding process . Heart is mildly enlarged , including a dilated left atrium both increased since ___ . Partially imaged upper abdomen is unremarkable .
    OUTPUT:
    
Mild cardiomegaly and left atrial enlargement . See Findings for discussion of interstial pulmonary abnormality -- ___ failure , infection or chronic disease .