Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP chest radiograph is obtained . IVC filter and coils are noted in the upper abdomen . The cardiomediastinal contours are unchanged compared to the prior exam . The opacity seen projecting over the left base in the previous study has substantially improved . The right lung is clear . No pleural effusions and no pneumothorax .
    OUTPUT:
    
Near resolution of left lower lobe opacity .