Choline positron emission tomography/computerized tomography detects affected lymph node regions (pelvic left/right and retroperitoneal) in patients with prostate cancer relapse with high accuracy and it seems helpful for guiding salvage lymph node dissection. Sensitivity decreases with the size of metastatic infiltration in lymph nodes. This technique detects metastasis in a significant fraction of lymph nodes that are not pathologically enlarged on computerized tomography.
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大場 et al. (2009) studied this question.
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