Figure 13a. Malignant iliac nodes in a 46-year-old woman with a history of micropapillary serous ovarian cancer (same patient as in Fig 4). (a) PET scan shows increased uptake in the left side of the pelvis (arrow) that may represent either a bowel implant or a node. (b) CT scan demonstrates enlarged left iliac nodes (arrow). (c) Fused PET-CT scan shows activity in the left iliac nodes (arrow), which proved to be malignant at surgery. Note the misregistration due to bladder activity in the right side of the pelvis.