Fig. 2

CT and PET/CT for hepatic imaging in anorectal malignant melanoma. A sixty-three-year-old male patient (patient 2) with a large anorectal melanoma, inguinal lymphatic metastases on both sides, and distant metastases. PET/CT depicts two hepatic metastases in segment six (b) and eight (not in the picture) without any corresponding findings on contrast-enhanced CT (a). Staging based on CT underestimated tumor stage by missing the distant metastatic spread completely in this patient