[Seed migration to the vertebral venous plexus after prostate brachytherapy].

We report on seed migration to the vertebral venous plexus after low dose rate prostate brachytherapy with (125)I. A 74-year-old man with T1c N0 M0 adenocarcinoma of the prostate with a Gleason score of 6 (3+3) and prostate-specific antigen level of 14.94 ng/ml underwent interstitial prostate brachytherapy. Six weeks after treatment at the follow-up to determine aftercare a migrated seed was detected in the vertebral venous plexus and a second one in the right lung. No tissue damage around the migrated seeds was documented and the patient exhibited no clinical symptoms.