膀胱癌の4剖検例—本邦膀胱癌349例の統計的考察

4 AUTOPSY CASES OF CANCER OF URINARY BLADDER: A STATISTICAL STUDY OF 349 CASES IN JAPANESE LITERATURE

Ⅰ．緒言

　原発性脳腫瘍に対して，二次性転移性脳腫瘍の頻度は報告者によりかなりの差がある（1.6〜40.0％）^4,6,9）が，なかんずく肺癌や乳癌を除くと比較的少なく，とくに膀胱腫瘍の脳転移例は稀である。

　最近膀胱癌4例に剖検を行なうことができたが，うち2例には転移なく，1例は肺，肝転移を，他の1例では生前より脳症状を発現し，剖検にて脳をはじめ副腎，小腸および皮膚転移をみとめた。よつてこれら4例の臨床経過ならびに剖検所見とともに日本病理解剖輯報より集めた膀胱癌349例の転移形成について検討したので併せて報告する。

Autopsy was performed on 4 cases of cancer of the bladder and among them metastasis was noticed in two but not in the rest. One of the 2 cases with metastasis, was a rare case with metastasis to the brain via the vertebral vein and metastatic lesion in the intestine, adrenal and skin.

The metastatic lesion of the 349 cases of bladder cancer, collected from the Annuals of Patholo-gical Autopsy Cases in Japan, between 1962 and 1965 were mostly in the lymphnodes, liver, lungs, bones and intestines but brain metastasis were seen only in 2 cases.