Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A frontal semi-upright view of the chest was obtained portably . The lungs are well expanded and clear without focal consolidation , pleural effusion , or pneumothorax . Heart size is upper limits of normal , accentuated by lordotic view . Mediastinal silhouette and hilar contours are normal .
    OUTPUT:
    
No pneumonia , edema , or effusion .