Sixty-one patients with granulosa cell tumors of the ovary were treated in the A.M. Evans Clinic of the British Columbia Cancer Control Agency between 1944 and 1974. Their treatment and follow-up are reviewed, and while the 5-year survival rate was 78%, the 15-year rate fell to 50%. The material suggests that the trend to total hysterectomy and bilateral salpingo-oophorectomy has improved the prognosis, but other explanations are, of course, possible as this is a historical comparison.