Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . Lungs are clear without focal consolidation . No pleural effusion or pneumothorax is seen . Cardiac and mediastinal silhouettes are unremarkable . Previously seen left lower lobe opacity is no longer present . There is a right paratracheal calcification again seen .
    OUTPUT:
    
Interval resolution of previously seen left lower lobe pneumonia .