68Ga-PSMA PET/CT for the detection of bone metastasis in recurrent prostate cancer and a PSA level <2 ng/ml: Two case reports and a literature review

Lars J Petersen, Julie B Nielsen, Katja Dettmann, Rune V Fisker, Uwe Haberkorn, Louise Stenholt, Helle D Zacho

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Abstract

Localization of prostate cancer recurrence, particularly in the bones, is a major challenge with standard of care imaging in patients with biochemical recurrence following curatively intended treatment. Gallium-68-labeled prostate specific membrane antigen positron emission tomography/computed tomography ((68)Ga-PSMA PET/CT) is a novel and promising method for imaging in prostate cancer. The present study reports two cases of patients with prostate cancer with biochemical recurrence, with evidence of bone metastases on (68)Ga-PSMA PET/CT images and low prostate specific antigen PSA levels (<2 ng/ml) and PSA doubling time >6 months. The bone metastases were verified by supplementary imaging with (18)F-sodium fluoride PET/CT and magnetic resonance imaging as well as biochemical responses to androgen deprivation therapy. Therefore, (68)Ga-PSMA PET/CT is promising for the restaging of patients with prostate cancer with biochemical recurrence, including patients with low PSA levels and low PSA kinetics.

Original languageEnglish
JournalMolecular and Clinical Oncology
Volume7
Issue number1
Pages (from-to)67-72
Number of pages6
ISSN2049-9450
DOIs
Publication statusPublished - Jul 2017

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Keywords

  • Journal Article

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