Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is moderately enlarged and there is pulmonary vascular redistribution and increased interstitial markings and hazy alveolar infiltrate in the lower lungs . There small bilateral effusions . There is dense retrocardiac opacity consistent volume loss / infiltrate / effusion . There is also increased opacity in the right lower lobe consistent with volume loss / infiltrate .
    OUTPUT:
    
Fluid overload . An underlying infectious infiltrate ca n't be excluded