Stage II cancer means cancer has not yet spread outside of prostrate but is large. Treatment depends on age of patient, his general condition mainly. Radical prostatectomy is done and if during surgery it is found that cancer has spread or if few months after surgery PSA has increased, then external beam radiation is considered. Either solely external beam radiation, or brachytherapy, or both are considered depending on patient's condition and cancer stage. If patient has serious health issues then radiation therapy with brachytherapy is planned. Regular follow up with clinician is very important. Please consult an oncologist - Oncologists in Mumbai. Hope our answer helps you.