Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lordotic positioning . There is mild cardiomegaly . There is relatively minimal upper zone redistribution . However , there are diffuse increased interstitial markings and vascular blurring , with more confluent opacity at the right base . The appearance is consistent with interstitial and early alveolar edema . Doubt , but can not entirely exclude , an underlying infectious infiltrate . No gross effusions . No pneumothorax detected .
    OUTPUT:
    
Cardiomegaly , likely with interstitial and early alveolar edema . No effusions . Doubt , but can not entirely exclude , an underlying infectious infiltrate .