Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The left effusion has resolved post thoracentesis . No pneumothorax . The heart is within upper limits of normal in size considering projection . Lungs appear clear . No CHF signs . Dual lead pacemaker with wires seen RA and RV .
    OUTPUT:
    
Resolution of left effusion post thoracentesis with no pneumothorax .