Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours appear stable . There is no pleural effusion or pneumothorax . New geographic opacity projecting over the lower portion of the right upper lobe suggests mild hemorrhage associated with a recent biopsy . There is no pneumothorax .
    OUTPUT:
    
Post - biopsy changes in the right upper lobe .