Figure 9a. Tumor implants in a 55-year-old woman with ovarian cancer and a rising serum CA-125 level. (a) CT scan demonstrates minimal nodularity in the left paracolic gutter (arrow), a finding that is suggestive of implants. (b) PET scan shows a linear area of slightly increased uptake in the same region (arrow) that may represent either normal bowel or implants. (c) Fused PET-CT scan demonstrates an area of increased activity (arrow) that corresponds to the nodules seen at CT and is suggestive of tumor implants.