Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right - sided IJ terminates in the right atrium . There has been slight interval improvement of the small bilateral pleural effusions , right greater than left . Overall , there has been interval improvement of the mild bilateral diffuse pulmonary edema compared to the prior exam . Mild cardiomegaly has been stable compared to exams dated back to ___ . There is no evidence of pneumothorax .
    OUTPUT:
    
Overall , interval improvement of the small bilateral pleural effusions and mild pulmonary edema compared to the prior exam . A superimposed infectious process can not be excluded .