Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Subtle left infrahilar opacity may relate to overlap of vascular structures , but focus of consolidation is not excluded in the appropriate clinical setting . The right lung is clear . There is no pleural effusion or pneumothorax . The cardiac and mediastinal silhouettes are unremarkable . No pulmonary edema is seen .
    OUTPUT:
    
No pulmonary edema . Subtle left infrahilar opacity may be due to overlap of vascular structures , but new focus of consolidation is not excluded in the appropriate clinical setting .