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We report the case of a 69-year-old man referred for F-fluorocholine (FCH) PET/CT for a biochemical recurrence of prostate cancer. FCH PET/CT demonstrated 2 hypodense hepatic lesions with no uptake… Click to show full abstract
We report the case of a 69-year-old man referred for F-fluorocholine (FCH) PET/CT for a biochemical recurrence of prostate cancer. FCH PET/CT demonstrated 2 hypodense hepatic lesions with no uptake but progressing in size compared with a previous assessment. MRI showed a suspicious peripheral contrast enhancement, raising the question of a liver metastasis. Histopathologic examination concluded to a prostate adenocarcinoma metastasis. This case highlights an unusual pitfall in FCH PET/CT: the lack of uptake in prostatic liver metastasis is presumably due to the partial volume effect induced by the necrotic center and the high uptake of the liver.
Journal Title: Clinical Nuclear Medicine
Year Published: 2018
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