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Case 3: Seed disappearance from the right groin area four years after seed implantation. One day after seed implantation, a follow-up pelvic radiograph showed that a seed was located inferior to the right side of the pelvis (solid arrow) (A). Subsequent computed tomography showed that the seed had migrated to the right groin area (solid arrow) (B). Four years after seed implantation, a follow-up pelvic radiograph showed that the seed had disappeared from the pelvic area (C).
