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a Coronal maximum-intensity-projection (MIP) MDCT image showing elongated and tortuous suprarenal IVC segment (open arrow) progressing with intrahepatic IVC segment b Axial MDCT image showing concurrent CA (asterisk)/CHA (arrow) at the base of the heart c Coronal MDCT image showing CHA draining into CA approximately at the level of thoracal 6 (T6) (arrow) d Coronal MDCT image showing retrocrural shunts (arrows) secondary to IVC agenesis
