- Clincally enlarged pelvic lymph node ((short axis 0.5 cm ≤) in imaging studies (CT, MRI, PET-CT) at diagnosis and partial response or complete remission of enlarged lymph nodes according to RECIST v1.1 after hormonal therapy for 2-3 months 3. age 20 ≤ 4. ECOG performance status 0-1 5. Optimal hematologic profiles within 6 months for study enrollment