Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours are normal . Pulmonary vasculature is normal . Consolidative opacity in the left lower lobe is compatible with pneumonia . Right lung is clear . No pleural effusion or pneumothorax is identified . No acute osseous abnormalities seen .
    OUTPUT:
    
Left lower lobe pneumonia . Followup radiographs after treatment are recommended to ensure resolution of this finding .