Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . Cardiomegaly is mild and similar to prior . Small plate - like atelectasis is seen at the right lung base . The lungs are otherwise clear . No pneumothorax or pleural effusion . Pulmonary vasculature is unremarkable . A new double - lumen dialysis catheter terminates in the right atrium . Osseous structures are unremarkable .
    OUTPUT:
    
Mild cardiomegaly , similar to prior . Small right base atelectasis . New dialysis catheter terminating in right atrium . No pneumothorax .