Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable AP view through the chest demonstrates cardiomegaly . Cephalization of vasculature , as well as diffuse patchy opacities , particularly to lateral to the right hilum , is reflective of mild pulmonary edema . No large pleural effusion is seen . There is no pneumothorax . A radiopaque tubular structure is identified projecting over the left neck soft tissues .
    OUTPUT:
    
Cardiomegaly . Diffuse airspace opacities thought secondary to pulmonary edema . Recommend follow examination to exclude developing pneumonia .