- No malignancies within the past 5 years except renal cell carcinoma, basal or squamous cell carcinoma of the skin, carcinoma in situ of the cervix, resected incidental prostate cancer staged pT2 with Gleason Score ≤ 6 and postoperative PSA < 0.5 ng/mL, or patients with any history of malignancies who are disease-free for more than 5 years