Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Persistent mild to moderate cardiomegaly and pulmonary vascular congestion persists , with an interval increase in the severity of pulmonary edema . There is also moderate interstitial edema . Again noted , at the periphery of the right upper lobe , at the level of the ___ posterior rib , there is a 8 mm nodular opacity , overall unchanged compared to the prior exam . Small bilateral pleural effusions are persistent . There is a right - sided central line which terminates in the right atrium .
    OUTPUT:
    
1 . Overall , interval increase in the moderate to severe diffuse pulmonary edema compared to the prior exam . 2 . 8 - mm lung nodule in the right upper lobe is unchanged compared to the prior exam , however a chest CT is recommended to differentiate a benign nodule from a slowly growing lung adenocarcinoma .