Fig. 1

Abdominal CT scans. An abdominal axial CT scan indicates a large left adrenal mass that had invaded retroperitoneal cavity before surgery (a). A reconstructed coronal CT image shows that the top of left kidney was invaded by the tumor (b). An abdominal axial CT scan shows a residual mass after the surgery (c). An abdominal axial CT scan shows a complete response after the postoperative chemotherapy with four cycles of CHOP (d)