Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Opacity in the left lower lung with indistinctness of the left hemidiaphragm and costophrenic angle is probably a combination of atelectasis and a small effusion . A trace right pleural effusion is likely also present . Increased interstitial prominence and pulmonary vascular congestion is moderate , more pronounced from the prior exam and suggest some degree of edema and volume overload , even in the setting of low lung volumes . No pneumothorax . No definite focal consolidation . The heart is probably mildly enlarged . Severe S - shaped scoliosis and distortion of the thoracic cage is similar to the prior exam .
    OUTPUT:
    
Findings suggestive of volume overload . No definite focal pneumonia .