Fig. 1

Imaging of the lower abdominal cavity and pelvic region visualizing one of the local recurrences as well as the radiological evidence of complete remission after the final round of surgery. Left columns depict conventional computerized tomography (CT) scans and right columns visualize the positron emission tomography with fluorodeoxyglucose (PET F18 FDG) findings. Top row: White arrowhead highlights one of the local recurrences, a right-sided subcutaneous inguinal lymph node metastasis. Bottom row: No remaining tumor tissue is evident after the fourth and final round of surgery. Left side is marked by the letter “L”