Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Persistent cardiomegaly and pulmonary vascular congestion with interval decrease in severity of pulmonary edema with residual mild interstitial edema remaining . Within the periphery of the right upper lobe , at the level of the sixth posterior rib level is a poorly - defined 7 - mm diameter nodular opacity which in retrospect is present on older study of ___ . Note is also made of small bilateral pleural effusions .
    OUTPUT:
    
1 . Improving pulmonary edema . 2 . 7 mm peripheral right upper lobe nodular opacity , for which chest CT is recommended in order to differentiate a benign nodule from a slowly growing lung adenocarcinoma . Dr . ___ was telephoned with this recommendation on ___ at 10 :45 a .m . at time of discovery .