Kurtz B, Steidle B, Molzahn E
Radiologische Abteilung, Evangelisches Krankenhaus Düsseldorf.
Rofo. 1993 Apr;158(4):314-9. doi: 10.1055/s-2008-1032656.
Intussusceptions in adults are rare. With the increasing use of sonography, CT and improved methods for examining the small bowel, they are now diagnosed more frequently before operation. If one considers the possibility, acute invaginations can be readily diagnosed by sonography or barium examination; the CT appearances are pathognomonic. In long-standing cases it may be difficult to separate the oedematous small bowel walls from each other. The "duck bill" narrowing is a sign of chronic invagination.
成人肠套叠较为罕见。随着超声、CT的广泛应用以及小肠检查方法的改进，现在它们在手术前被更频繁地诊断出来。如果考虑到这种可能性，急性肠套叠可通过超声或钡剂检查轻易诊断；CT表现具有特征性。在病程较长的病例中，可能难以区分水肿的小肠壁。“鸭嘴”样狭窄是慢性肠套叠的征象。
