[Complete remission of prostate cancer after LH-RH agonist neoadjuvant therapy: a case report]

We report a case of prostate cancer showing a complete remission after LH-RH agonist neoadjuvant therapy. A 69-year-old man was referred to our department complaining of pain on urination and urge incontinence. The serum prostate specific antigen (PSA) level was 41.6 ng/ml. Needle biopsy specimens from both lobes revealed moderately differentiated adenocarcinoma. Chest X-ray, computed tomographic (CT) scan, and bone scintigraphy demonstrated neither distant metastasis nor local invasion. LH-RH agonist was administered on a monthly basis as neoadjuvant therapy. After 4 injections, pelvic lymph node dissection and radical prostatectomy were performed on January 11, 1993. Thorough examination did not reveal any cancer cells in the removed specimen. The patient was discharged 30 days after the operation and has shown no evidence of distant metastasis or local recurrence as long as 19 months later.