Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A single portable AP chest radiograph was obtained . The lungs are well expanded . There are alveolar opacities at both lung bases . The hila are indistinct . There is mild cephalization of the pulmonary vasculature . Cardiomegaly is moderate . There is no effusion or pneumothorax .
    OUTPUT:
    
Bilateral airspace opacities and indistinctness of the hila most compatible with pulmonary edema .