Urology Case Reports (Sep 2023)

Late relapsing testicular cancer detected with 18F-FDG PET preceded by long-term alpha-fetoprotein elevation

  • Hiromichi Sakurai,
  • Akinobu Katami,
  • Hiroshi Yuki,
  • Ryosuke Matsuoka,
  • Koji Kawai,
  • Takayuki Shiomi,
  • Jun Miyazaki

Journal volume & issue
Vol. 50
p. 102511

Abstract

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Late relapse (LR) of testicular cancer is often associated with chemoresistance, and thus the first choice of therapy is surgery if complete resection is possible. In some LR cases (including our patient, a 31-year-old Japanese man), elevation of alpha-fetoprotein (AFP) may precede the radiologic detection of LR. Approximately 500 days after the start of our patient's AFP elevation, 18F-fluordeoxyglucose positron emission tomography (FDG-PET) revealed strong FDG uptake in an equivocally enlarged external iliac lymph node. The lymphadenectomy as salvage surgery resulted in long-term complete remission without further treatment. Using FDG-PET made it possible to perform effective salvage surgery.

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