膀胱癌剖検70例からみた転移の検討

METASTASIS IN SEVENTY AUTOPSIED CASES OF THE BLADDER CANCER

はじめに

　膀胱癌の多くは，高分化型，表在性であり比較的おだやかな癌と考えられている。しかし，低分化型や進行性の膀胱癌症例では，他の悪性腫瘍と同様に多彩な転移，浸潤の病態を認めることも少なくない。今回，慈恵医大では，1960年から1984年末までに70例の膀胱癌症例に対して剖検を施行したので，膀胱癌の病巣のひろがりについて観察を行つた。

Pathological autopsy was carried out in 70 cases of bladder cancer during the past 25 years from 1960 to 1984 at the Jikei University Hospital. Metastasis of bladder cancer was observed in 45 (64.5%) of the cases. When the incidence of metastasis was determined according to histopathological diagnosis, it was high in cases of undifferentiated transitional cell carcinoma and in those involved by elements other than transitional cell carcinoma. In regard to the organ metastasis, the incidence was highest in the lymph nodes (48.6%), followed by the lungs (42.9%), liver (37.1%), bone (27.1%), and adrenal grands (15.7%) in that order.