Abstract
Conclusions
1. The fibroplastic response in the outer half of the vein wall and in the periportal tissues is similar to the reaction seen in the aorta following application of Polythene and tantalum.
2. At least 6 to 8 weeks are required for complete occlusion of the portal vein by Polythene-induced fibroplasia.
3. The gradual occlusion of the portal vein produced by irritative Polythene may be valuable in preparing for elective ligation of the portal vein and in the experimental study of decreased portal blood flow.
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