Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Study is limited due to patient rotation . Heart size is likely mildly enlarged . Mediastinal contours are difficult to assess given patient rotation . There is no pulmonary vascular congestion . Mild streaky left basilar opacity likely reflects atelectasis . No focal consolidation , pleural effusion or pneumothorax is identified . No acute osseous abnormality is seen .
    OUTPUT:
    
Minimal left basilar atelectasis .