Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac , mediastinal and hilar contours are normal . Pulmonary vasculature is normal . Minimal patchy opacity is seen within the left lower lobe , findings which could reflect early developing pneumonia . Right lung is clear . No pneumothorax or pleural effusion is demonstrated . No acute osseous abnormality is identified .
    OUTPUT:
    
Minimal patchy left lower lobe opacity could reflect early developing pneumonia in the correct clinical setting . Followup radiographs after treatment are recommended to ensure resolution of this finding .