Metastasis-Directed Radiotherapy for Oligoprogressive Castration-Resistant Prostate Cancer Recurrence Revealed by Choline PET/CT
Kazuhiro Kitajima, Shingo Yamamoto, Masayuki Fujiwara and 10 more
Case Reports in Oncology · 2021
doi:10.1159/000512068 (opens in a new tab)
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Abstract
We report a 49-year-old male with castration-resistant prostate cancer (CRPC) with oligometastasis diagnosed by 11C-choline positron emission tomography-computed tomography (PET/CT) and treated with target radiotherapy. In the diagnosis of CRPC (serum prostate-specific antigen [PSA] level of 6.53 ng/mL after maximum androgen blockade (MAB) therapy, high-dose brachytherapy, and external beam radiotherapy), 11C-choline PET/CT detected one tiny obturator lymph node metastasis which fluorodeoxyglucose PET/CT could not detect. He underwent intensity-modulated radiation therapy and MAB was restarted. The PSA value decreased and reached nadir (0.091 ng/mL) after 6 months. The time to PSA progression was 10 months. The choline PET/CT finding and the corresponding local treatment could play an important role in the management sequence of oligoprogressive CRPC.
Abstract licence: CC BY-NC
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