68 Ga-FAPI PET/CT Imaging : Unveiling the Hidden Pitfalls

Clin Nucl Med. 2023 Nov 1;48(11):965-966. doi: 10.1097/RLU.0000000000004802. Epub 2023 Sep 21.

Abstract

68 Ga-FAPI has been introduced recently in many nuclear medicine centers. Many pitfalls have been discussed previously. However, not all pitfalls are currently addressed in the literature. To our knowledge, this is the first reported case to address nonspecific 68 Ga-FAPI expression at anorectal sphincter. A 69-year-old woman was diagnosed with intrahepatic cholangiocarcinoma. A 68 Ga-FAPI scan was performed after diagnostic workup and chemoradiotherapy. In addition to 68 Ga-FAPI-avid lesion at primary site, several nononcological ancillary findings have been observed. This includes unaddressed 68 Ga-FAPI-avid focus within anorectal sphincter. Moreover, the same noteworthy findings were observed in the musculoskeletal and gynecological systems.

Publication types

  • Case Reports

MeSH terms

  • Aged
  • Bile Duct Neoplasms*
  • Bile Ducts, Intrahepatic
  • Female
  • Fluorodeoxyglucose F18
  • Humans
  • Positron Emission Tomography Computed Tomography*

Substances

  • Gallium-68
  • abamectin
  • Fluorodeoxyglucose F18