Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since prior , there has been interval improvement of pulmonary vascular congestion , some of which may be attributed to PA position . Severe cardiomegaly is unchanged . A likely small pleural effusion is seen on lateral view . There is no pneumothorax . Right IJ central venous catheter projects over the low SVC .
    OUTPUT:
    
Improved pulmonary vascular engorgement may in part be related to PA positioning .