Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Assessment is limited due to patient rotation and positioning . Heart size may be mildly enlarged . Mediastinal and hilar contours are grossly unremarkable . Right lung is clear . There may be patchy opacification in the left lung base . No large pleural effusion or pneumothorax is present . Pulmonary vasculature is normal . No acute osseous abnormality is visualized , although the osseous structures are diffusely demineralized .
    OUTPUT:
    
Limited exam . Possible patchy opacity in the left lung base , which could reflect atelectasis . Further assessment with dedicated PA and lateral views if the patient is able to would be beneficial for improved assessment of the lung bases .