Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Assessment is slightly limited by patient rotation and kyphotic positioning . Cardiac silhouette size remains moderately enlarged . A large hiatal hernia is again noted . The aortic knob is calcified . The mediastinal and hilar contours are grossly unchanged . There are low lung volumes with crowding of bronchovascular structures and pulmonary vascular congestion , but no overt pulmonary edema . No large pleural effusion or pneumothorax is identified , though assessment of the lung apices is limited due to the patient 's chin and neck projecting over these areas . Linear atelectasis is noted in the left lung base . There is no focal consolidation . The osseous structures are diffusely demineralized .
    OUTPUT:
    
Limited exam . Mild pulmonary vascular congestion and left basilar atelectasis . Large hiatal hernia .