Hematological Malignancies

Clinical implications • 47-year old HL survivor (treated < 25 yr) same CRC risk as 55-60 year old person from general population (0.5%) • Need for screening guidelines for HL survivors • COG guideline: colonoscopy after ≥ 30 Gy abdominal RT 10 yrs after RT or at age 35 • Starting age? Also after procarbazine CT? • Implications for the use of procarbazine in new treatment regimens?