Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP View of the chest provided . Right lung base opacity is new , but nonspecific with a board differential including pneumonia or atelectasis + / - pleural effusion or even pulmonary embolism in the appropriate clinical scenario . There is no left pleural effusion . Rest of the lungs are clear . Pulmonary vasculature is normal . Cardiomediastinal and hilar contours are normal .
    OUTPUT:
    
1 . No pulmonary edema . 2 . Nonspecific right lung base opacity . Lateral chest radiograph could be helpful to the narrow possible differential diagnoses .