Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Central venous catheter projects over the right chest wall with its tip in the region of the SVC . The heart appears moderately enlarged which in part could reflect portable technique . Lung volumes are low without focal consolidation large effusion or pneumothorax . Mediastinal contour appears normal . Bony structures are intact .
    OUTPUT:
    
Cardiomegaly without edema .