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A Clinico-pathological study was made on a series of 59 malignant ovarian tumors operated at the Presbyterian Hospital, Jeon Ju, Korea, during the period of eleven years from 1965 to 1975. The results were as follows; 1. The incidence of malignant ovarian tumors of all ovarian tumors was 16.6%. 2. Age distribution of malignant ovarian tumors showed the highest frequency between 40-49 years group(average 40 years). 3. As to subjective symptoms of all malignant tumors, palpable mass in the lower abdomen was 94.9%, lower abdominal pain in 61.0% and gastro-intestinal trouble in 47.5%. 4. Palpable adnexal or abdominal mass were observed in 84.7%, abdominal distention in 57.6%, ascites in 40.7% and anemia in 23.7%. 5. According to the international classification of the clinical stage, stage Ⅰ was seen in 25.4%, stage Ⅱ in 18.6%, stage Ⅲ in 15.3% and 40.7% in stage Ⅳ. And it`s bilaterallity was 47.4%. 6. According to the Novak`s histhopathological classification, serous cystadenocarcinoma was found in 28.8%, solid carcinoma in 20.3%, mucinous adenocarcinoma in 16.9% and Krukenberg tumor in 13.6% etc. 7. Treatment was surgical with total abdominal hysterectomy with bilateral salpingo-oophorectomy with or without omentectomy. Adjuvant treatments, Chrolambucil or Cytoxan and Co60 external irradiation were used in 18 cases. 8. It was hard to get 5 year survival rate because of insufficient follow up study.
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