Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No significant changes compared to prior exam . The patient is status post right lung biopsy . Postsurgical changes are seen at the right lung base . Stable calcified granuloma in the left lung base . Small bilateral pleural effusions ca n't be excluded . Enlarged heart size is unchanged . There is no pneumothorax .
    OUTPUT:
    
No evidence of pneumothorax .