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