[Angiographic diagnosis of venous invasion with reference to liver metastasis of carcinoma of the colon].
Angiography using Prostaglandin E1 was performed on thirty one cases with carcinoma of the colon in order to define the degree of venous invasion. Venous findings (occlusion and/or encasement) were classified into three groups: AG-V2, above mentioned venous findings up to marginal vein; AG-V1, these findings up to the vein of vasa recta; AG-V0, no distinct findings on the vein. 1) When angiographic findings were compared to histological findings of subserosal venous invasion, the results of AG-V2, AG-V1 and AG-V0 showed a positive correlation of 91.7%, 46.2% and 16.7%, respectively. 2) The angiographic findings were also correlated with the degree of fibrosis around carcinoma of the colon. 3) The incidence rate of liver metastasis in a group of AG-V2 was 50%. In AG-V1 it was 30.8% and in AG-V0 0%. 4) In the course of the postoperative follow-up, liver metastasis appeared in 2 cases of AG-V2 and AG-V1, respectively. The finding may suggest the existence of the liver metastases at the time of operation.
First Department of Surgery, Gunma University School of Medicine, Maebashi, Japan.
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Iijima
D000527:Alprostadil; D003106:Colon / Q000098:blood supply*; D003110:Colonic Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D005500:Follow-Up Studies; D006801:Humans; D008113:Liver Neoplasms / Q000175:diagnosis / Q000556:secondary*; D009361:Neoplasm Invasiveness; D010690:Phlebography
D000527:Alprostadil