Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours appear unchanged . Streaky right basilar opacification with volume loss suggests chronic atelectasis or scarring , also unchanged . There is potentially a small pleural effusion on the right , but no evidence for one on the left . There is no pneumothorax . As previously noted , the available AP view of the left shoulder suggests dislocation with possible healed or healing fractures suggested by irregular sclerosis along the margin of the glenoid .
    OUTPUT:
    
No evidence of acute disease .