Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval placement of a left internal jugular central venous catheter with tip projecting over the mid SVC . There is no pneumothorax . Otherwise , there is been no change . Probable moderate right pleural effusion is again seen with vague right upper lung opacity less clearly delineated . Cardiomegaly with mitral annular calcifications . Retrocardiac opacity suspicious for hiatal hernia . Lumbar levoscoliosis is noted .
    OUTPUT:
    
Ventral placement of a left - sided central venous catheter with tip projecting over the mid SVC . No pneumothorax .