The cancer metastasis in case of X-ray irradiated lymphnodes was experimentally studied excepting the factors of the primary tumor. The results were obtained as follows and also the reasoning of the preceding part was confirmed.
1) The nidation of tumor cells in the lymphnodes irradiated with 600 r or 300 r×5 of X-ray is faster than those with 60 r or non-irradiated controls.
2) The nidation of tumor cells in the lymphnodes begins generally at the marginal sinus and they infiltrate to cortical tubercles. In the case irradiated with big dosis of X-ray, it begins at the border of the marginal and intermediated sinus and the tumor cells infiltrate to the subcortex and then the cortical tubercles.
3) After the nidation of Brown-Pearce tumor cells in the lymphnodes, they do not proliferate along the lymph sinus but mainly along the parenchym of the lymphnodes.

抄録全体を表示