title: Perineal recurrence of adenocarcinoma of prostate following radiation therapy.
abstract: Two cases of seeding of adenocarcinoma of the prostate to the perineum via biopsy tract are presented. Both patients had been treated previously with external beam radiotherapy. The dose of radiation to the perineum was calculated and, in both cases, was not tumoricidal. Treatment options for this uncommon site of recurrence are presented.
mesh_terms: D000230:Adenocarcinoma / Q000532:radiotherapy / Q000556:secondary*; D000368:Aged; D001706:Biopsy / Q000009:adverse effects; D006801:Humans; D008297:Male; D008875:Middle Aged; D009366:Neoplasm Seeding; D010502:Perineum; D011471:Prostatic Neoplasms / Q000532:radiotherapy*; D011882:Radiotherapy, High-Energy