Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right lower lung opacities are increased since ___ , concerning for worsening or new pneumonia . The left lung is essentially clear . Mild bibasilar atelectasis is noted . The heart size is stable . The right hemodialysis catheter tip is seen in the right atrium . No pneumothorax or pulmonary edema .
    OUTPUT:
    
Increased right lower lung pneumonia since ___ , possibly involving the right lower lobe and right middle lobe . .