Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours appear stable . There is no pleural effusion or pneumothorax . A vague interstitial prominence in the upper lungs may indicate slight fluid overload but there is no focal opacity .
    OUTPUT:
    
Findings that may indicate minimal fluid overload but otherwise unremarkable examination without convincing evidence for pneumonia .