Journal of Okayama Medical Association
Published by Okayama Medical Association

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Watanabe, Ichiro
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Statistical studies were carried out on seventy eight in-patients with chorioepithelioma at the Gynecological Dept. of Okayama University Medical School during the period from 1945 to 1955. The following results were obtained. The frequency of chorioepithelioma cases was 0.5 per cent, of gynecological in-patients during the said period, and average ages of these in-patients were thirty five years. Cases caused by hydatidiform moles were 57, 69 per cent and by artificial abortions, which have been remarkably prevailing after the end of the last World War, formed 10.25 per cent, of these in-patients. As for the latency period, it was less than six months on 90.75 per cent of these in-patients. Further, the followings were observed that most of these in-patients presented the symptoms of anemia, and 92.75 per cent of them had abnormally big uterus and on 42.62 per cent of these in-patients, cystic swells in the ovaries were seen. Besides, 44.87 per cent of them were subjected to metastasis, particularly on their vaginas and lungs, and on the external genitals, cerebrum, abdomen and bladder in frequent order. Methods of treatment, applied on these in-patients, were as follows. Operation (total hysterectomy has been adopted in principle at this Dept): 39.74 per cent Combined method of operation and radiotherapy: 46.15 per cent Radiotherapy method: 11.53 per cent Chemotheraphy method: 2.56 per cent The prognosis of these in-patients, after the foresaid treatment, were as follows. Primary death during treatment: 15.28 per cent In-patients, concluded to be incurable at the time of leaving of this Dept: 7.67 per cent In-patients, favourably recovered: 26.92 per cent In-patients, recovered temporarily: 50.00 per cent