Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: On the lateral projection , multiple rounded patchy opacities are seen projecting over the upper and middle lung fields of unknown etiology . These opacities are not localized on the frontal view . There is no pleural effusion , pneumothorax , or pulmonary edema . The heart size is normal . Mediastinal and hilar contours are normal .
    OUTPUT:
    
Multiple , vague , patchy opacities seen only in the lateral projection , on unknown etiology . Recommend dedicated CT chest examination for further evaluation .