18 F-FDG PET/CT Identified Rectal Malignancy Earlier Than 68 Ga-FAPI PET/CT.
case_report · Level V
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- Record sourced from PubMed, PMID 40042351.
- Also identified by DOI 10.1097/RLU.0000000000005800.
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Abstract
A 69-year-old man with esophageal cancer underwent dual-tracer PET/CT using 18 F-FDG and 68 Ga-FAPI during his treatment. At baseline, neither scan showed abnormal uptake in the rectum. Three months later, an interim 18 F-FDG PET/CT revealed focal uptake in the rectum, while the 68 Ga-FAPI PET/CT showed no abnormal findings. Seventeen months later, he received a third dual-tracer PET/CT for surveillance. Both 18 F-FDG and 68 Ga-FAPI PET/CT detected abnormal activity in the same area of the rectum . The lesion was later confirmed as adenocarcinoma by histopathology after surgery. Our case demonstrated the 18 F-FDG PET/CT could identify the rectal malignancy before 68 Ga-FAPI PET/CT.
Medical subject headings
- Positron Emission Tomography Computed Tomography
- Rectal Neoplasms
- Fluorodeoxyglucose F18