Migration of prostate brachytherapy seeds to the vertebral venous plexus

Brachytherapy
Masahiro NakanoHiroaki Hoshi

Abstract

We report two cases of seed migration to the vertebral venous plexus after iodine-125 (I-125) transperineal interstitial permanent prostate brachytherapy. Case 1: A 67-year-old Japanese man underwent percutaneous transperineal interstitial permanent prostate brachytherapy at our institution. Three months after brachytherapy, routine followup kidney-urinary bladder (KUB) radiography showed two seeds that had migrated to the pelvic area and were overlapped by sacral bone. It was very difficult to detect the seeds by visceral CT, because seeds were in contact with to vertebral bone, and seeds and bone were of the same CT value in visceral CT. But bone CT could distinguish seeds and bone, and it showed seed migration to the vertebral venous plexus in the sacral vertebral canal. Case 2: A 75-year-old Japanese man underwent percutaneous transperineal interstitial permanent prostate brachytherapy at our institution. The day after seed implantation, routine followup KUB radiography showed that a seed had migrated to the pelvic area and was overlapped by sacral bone. Bone CT clearly showed seed migration to the vertebral venous plexus in the vertebral canal in comparison with visceral CT. Seeds that have migrated to the vertebral venous...Continue Reading

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Citations

Sep 14, 2010·Der Urologe. Ausg. A·W WagnerM G Krukemeyer
May 4, 2013·European Journal of Nuclear Medicine and Molecular Imaging·Francesca BottaGiovanni Paganelli
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