Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The appearance of the lines and tubes are unchanged . There continues to be pulmonary edema with pulmonary vascular redistribution and hazy alveolar infiltrates right greater than left and small bilateral effusions . . However , the overall appearance has improved compared to the study from the prior day .
    OUTPUT:
    
Slight improvement in pulmonary edema .