Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . Port - A - Cath projects over the right chest wall with catheter extending to the region of the mid SVC . Lung volumes are low . No convincing signs of pneumonia or CHF . The heart remains moderately enlarged . Mediastinal contour is stable . Bony structures are intact .
    OUTPUT:
    
Stable cardiomegaly . No convincing signs of pneumonia or CHF . Limited due to low lung volumes .