Carcinoma of the Endometrium. IV. Mixed Adenosquamous Carcinoma: A Clinical-Pathological Study of 68 Cases with Long-term Follow-up

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Abstract
In a histologic review of 989 cases of invasive endometrial carcinomas there were 68 mixed adenosquamous carcinomas. Sixty were followed for at least five years, or until death. The other eight were diagnosed in 1976 and were ineligible for five-year status evaluation. Twenty-eight of the 60 patients or 46.7% were alive at five years. Twenty-five or 41.7% died of their cancer. Stage of disease, depth of myometrial invasion, vascular invasion, age, and method of treatment all had an impact on end results. By comparison, the absolute five-year survival rate for 200 women with adenoacanthoma was 87.0%. Thirty patients with atypia of the squamous portion of the adenoacanthoma had an identical survival rate as those without atypia. Combined irradiation and hysterectomy end results were superior to hysterectomy only, or to radiation therapy only. Although one examination of time trends revealed a significant increase in the percentage of all tumors that were diagnosed as adenoacanthoma, there was no increase in the relative frequency of mixed adenosquamous carcinoma.

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