Differentiation between Small Bowel Intussusception in Children and Adults and the Radiological Findings which Require an Operation

ABSTRACT

PURPOSE: To assess the differences in small bowel intussusceptions between children and adults, and to interpret the radiological findings requiring a surgical procedure. MATERIALS AND METHODS: A total of 62 study subjects (35 children, 27 adults) with small bowel intussusception diagnosed by US or CT and seen between January 2005 and December 2007 were included in this study. Two radiologists retrospectively reviewed both the medical records and radiological findings of each study subject. We contrasted the range of features found to be typical of small bowel intussusception for both children and adults based on cause, abdominal symptoms, diagnostic tools, and treatments. Also, we evaluated the radiological findings requiring a surgical procedure. RESULTS: The causes of small bowel intussusception were not identified in children; however, 4 adults were found to have tumors (a lipoma, a hemangioma, 2 metastases) (p=0.031). All of the children (100%) and 8 adults (29.6%) had abdominal symptoms (p < 0.001). The primary diagnostic tool in children was the US (31 cases, 88.6%), as opposed to the CT in adults (27 cases, 100%) (p < 0.001). A spontaneous reduction was confirmed in all children (100%) and supposed in 23 adults (85.2%) (p=0.031). The noteworthy radiological findings of 4 study subjects having undergone a surgical procedure are masses at the lead point and small bowel obstruction (p < 0.0001). CONCLUSION: Cases of small bowel intussusception in children are different from cases observed in adults, based on cause, symptoms, and diagnostic tools. However, most cases are spontaneously reduced. Important radiological findings requiring a surgical procedure were found to be caused by masses at the lead point and at the small bowel obstruction.