Sagar P M, Wedgwood K R
Department of Surgery, Leeds General Infirmary.
Br J Clin Pract. 1990 Dec;44(12):786-7.
Mechanical large bowel obstruction and pseudo-obstruction can be difficult to differentiate because clinical symptoms and signs are often misleading. Although plain abdominal radiographs showing diffuse gaseous distension, no shut-off point and gas in the rectum are very suggestive of pseudo-obstruction, incomplete clinical examination with over-reliance on the abdominal radiographs may lead to large bowel mechanical obstruction being misdiagnosed as pseudo-obstruction. We report a rare case of large bowel obstruction occurring secondary to anal canal stenosis.
机械性大肠梗阻和假性肠梗阻可能难以鉴别，因为临床症状和体征常常具有误导性。尽管腹部平片显示弥漫性气体扩张、无截断点及直肠内有气体高度提示假性肠梗阻，但临床检查不全面且过度依赖腹部平片可能导致大肠机械性梗阻被误诊为假性肠梗阻。我们报告1例罕见的继发于肛管狭窄的大肠梗阻病例。
