Both thin segment and vasa recta were negative . Medulla collecting tubule and the papillary duct were positive .

髓质部集合小管、乳头管上皮为阳性，而细段和 直 小 血管为阴性。

Enlarged and tortuous vasa recta running from the mesenteric side to the opposite side ;

从肠系膜 缘侧至对侧 缘 走 行 的 直 小 血管增 粗、 迂曲；

When contrast-enhanced CT depicts hypervascularity of the mesentery with vascular dilatation tortuosity and wide spacing of the vasa recta the comb sign is produced .

当增强CT显示血管扩张、 迂曲而血管增多的肠系膜和广泛分布的 直 小 血管，产生梳征。

Results Expression of ICAM-1 and p2 positive cells were increased in kidneys 24 hours after reperfusion especially at vasa recta peritubular capillaries .

结果缺血再灌注24h大鼠肾脏ICAM-1及β2阳性细胞表达显著增强， 以外 髓 直 小 血管，皮质肾小管外 毛细血管较为明显。

There were anatomic differences in length internal diameter and density of the vasa recta ( P < 0 . 05 ) .

直 动脉的长度、内径及密度（ 支 cm ）均存在解剖部位差异性（P<0.05）.方法之间无差异性。