Farrow C S
Mod Vet Pract. 1984 Oct;65(10):795-8.
Volvulus and incarceration of bowel by a hernia may cause a closed-loop obstruction, possibly with associated intramural accumulation of gas and/or blood. Standing lateral projections optimize diagnosis of strangulating obstructions. Accumulation of only fluid in the obstructed loop may resemble a tumor. Radiographic signs of exudation and peritoneal fluid accumulation may develop with closed-loop obstructions.
肠扭转和疝导致的肠管嵌顿可引起闭袢性肠梗阻，可能伴有肠壁内气体和/或血液积聚。站立位侧位片有助于优化绞窄性肠梗阻的诊断。梗阻肠袢内仅出现液体聚集可能类似肿瘤。闭袢性肠梗阻可出现渗出和腹腔积液的影像学表现。
