case_images: PMC9896083_01
case_images: Comparison of the three PET-CT images with respect to the size of
  retroperitoneal mass.
case_images: 10.1177_17562872221148382-fig1.jpg
case_images: PMC9896083_01_10.1177_17562872221148382-fig1.jpg
case_images: fig1-17562872221148382
case_images: Figure 1 shows the comparison of the three CT images.
case_images: Intraoperative image showing the retroperitoneal mass encasing the left
  ureter and after removal of the retroperitoneal mass.
case_images: 10.1177_17562872221148382-fig2.jpg
case_images: PMC9896083_01_10.1177_17562872221148382-fig2.jpg
case_images: fig2-17562872221148382
case_images: AFP levels, it was decided to proceed with RPLND and the child underwent exploratory laparotomy and left template removal after placing a double-J (DJ) stent in the left ureter cystoscopically (Figure 2). A drain was kept in the pelvis to allow for lymphatic drainage, in case lymphorrhea occured postoperatively.