Abstract
Objective: The effect of curative treatment for oligometastatic prostate cancer patients is unsolved, both with regard to morbidity and mortality. With this study, we provide some of the first long-term follow-up data on progression and mortality in oligometastatic prostate cancer patients after curative treatment of their primary tumor.Methods: A cohort of 210 patients with diagnosed prostate cancer was established between 2008 and 2010. All patients were scheduled for intended curative treatment, and all underwent blinded 18F-choline positron-emission tomography/computed tomography at inclusion prior to curative treatment. Upon unblinding, 12 patients (6%) were recategorized as being oligometastatic. They had a mean age of 64 years, median prostate-specific antigen of 18 ng/mL, and median Gleason score of 7. Six patients were staged as T3, one T2, and five T1. The patients had a median of one bone metastasis (range 1–2). All underwent intended curative radiotherapy or prostatectomy. Mean follow-up was 10.1 (8.9–11.0) years.Results: During follow-up of the 12 patients, three (25%) had biochemical recurrence, two developed castration-resistant disease, and one died due to prostate cancer.Conclusion: Our results suggest that intended curative treatment of the primary tumor in oligometastatic prostate cancer may have a role in highly selected patients.
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