Ratcliffe J, Tait J, Lisle D, Leditschke J F, Bell J
Department of Pediatric Radiology, Mater Children's Hospital, Brisbane, Australia.
Radiology. 1989 Jun;171(3):827-30. doi: 10.1148/radiology.171.3.2655007.
Segmental dilatation of the small bowel is a rare congenital abnormality that occurs mainly in children and produces significant nonspecific symptoms. The authors reviewed 33 cases reported in the literature and present three new cases in which the lesion was demonstrated on radiographs obtained before laparotomy. These cases showed the spectrum of symptoms and characteristic radiologic features of this condition in both plain abdominal radiographs and barium studies. Plain radiographs of the abdomen may show an isolated loop of bowel containing an air-fluid level. The characteristic finding in barium studies of the small bowel is a localized dilatation of the small bowel lumen with afferent and efferent loops. In the absence of a complication or coexistent cause of obstruction, the transit time of contrast medium through the small bowel is not delayed. The radiologic examination is useful in diagnosis, and the condition is cured with surgery.
小肠节段性扩张是一种罕见的先天性异常，主要发生于儿童，可产生明显的非特异性症状。作者回顾了文献报道的33例病例，并呈现3例新病例，这些病例在剖腹手术前行X线片检查时发现了病变。这些病例在腹部平片和钡剂造影检查中均显示了该病的一系列症状和特征性影像学表现。腹部平片可能显示一段孤立的肠袢内有气液平面。小肠钡剂造影的特征性表现是小肠肠腔局限性扩张，伴有输入袢和输出袢。在没有并发症或并存梗阻原因的情况下，造影剂通过小肠的传输时间不会延迟。影像学检查对诊断很有用，该病通过手术可治愈。
