Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left PICC tip is in the left axillary vein . Right edema is slightly improved since prior . There is likely a trace left effusion . There is no focal consolidation or pneumothorax . The cardiomediastinal silhouette is similar to prior . Imaged osseous structures are intact . No free air below the right hemidiaphragm is seen . Prosthetic aortic valves are again seen . Hiatal hernia is again seen .
    OUTPUT:
    
Left PICC tip is in the left axillary vein .