Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is enlarged and stable . Right internal jugular Swan - Ganz catheter is appropriately positioned . Pulmonary edema has improved . Small left pleural effusion is stable . Intra-aortic balloon pump tip is 1 .2 cm from the apex of the aortic knob .
    OUTPUT:
    
Intra-aortic balloon pump is above the usual expected position . Stable cardiomegaly and improvement in pulmonary edema .