腫瘍轉移と肺血管との關係に就ての病理學的研究(第2報) : 肝腫の轉移發現機轉

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The author tried to investigate the manner of tumor metastasis into the lung concerning hepatoma and came to the following conclusions:-(1) Excepting intrahepatic, portal or hepatovenous metastasis, hepatoma makes metastasis most abundantly into the lung as one of the extrahepatic appearances. (2) The pulmonary metastasis of hepatoma appears more abundantly into the blood vessel of the small dimension and rather rare into the greater one. (3)The pulmonary metastasis of hepatoma through the pulmonary artery appears most likely at the part of miliar aneurysm existing almost always in the pulmonary arteries. This miliar aneurysm is apt to be found at the bifurcating part or the curving part of the blood vessel (convex side in the latter) so that the tumor metastasis is inclined also to appear in such places. (4) The tumor tissue, being hooked within the miliar aneurysm, develops gradually making tumor embolus to destroy the wall of the artery from the inner surface and to make a true metastasis into the lung tissue then and then. (5) The manner of the metastasis formation in the lung is observed to be similar between chorionepithelioma and hepatoma as described in the former report and in the present one; one different thing is the formation of fibrinous thrombus in the former but not in the latter.
社団法人日本循環器学会の論文
1953-04-20