1989 Volume 31 Issue 2 Pages 409-414_1
We evaluated appearance of visible blood vessels and so-called "liver area" of the duodenal bulb endoscopically in 300 cases. Both findings appeared more frequently in females than in males with ages. In cases with duodenal ulcer or ulcer scar, few cases showed visible blood vessels. Blood vessels were visible in almost all the cases with "liver area". In operated cases, Brunner's glands were significantly thicker in cases with non-visible blood vessels than in cases with those findings, while there was no significant difference between them in height and density of villi. It was suggested from these results that appearance of visible blood vessels of the duodenal bulb were due to aging process and to decreased thickness of Brunner's glands.