Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: When compared to prior , there has been no significant interval change . There is persistent pulmonary edema . More confluent infrahilar opacity on the right could represent superimposed infection . There is no large effusion . Degree of cardiomegaly is unchanged . No acute osseous abnormalities .
    OUTPUT:
    
Pulmonary edema with more confluent opacity in the right infrahilar region which could represent edema versus superimposed infection .