Introduction: Intussusception is the most common abdominal emergency situation in the pediatric population and a potentially lethal condition with poorly understood etiology, is also the most common cause of acute intestinal obstruction in children younger than 5 years old.
Case report: We describe a 3- month -old male infant, vaginal delivered full-term baby, he was robust in the past and did not have any other systemic disease before. However, poor activity and decreased oral intake had been noted, and then bloody stool for three times and intermittent irritable situation were found. We arranged the sonogram of abdomen for him that showed an obvious target sign was noted over the left abdomen, and bowel wall thickening diameter about 0.5 cm and ascites are also noted. Hence, Ileocecal intussusception was diagnosed finally according to the operation & pathology under the Exploratory laparotomy with segmental resection of terminal ileum, ileocecal valve, appendix, and ascending colon with ileocolostomy.
Discussion: However, delay in diagnosis and treatment might lead to devastating complications such as bowel ischemia, perforation and peritonitis. In children, Ultrasound (US) has been shown to be the first-choice imaging technique in diagnosing intussusception for reasons of high accuracy, lack of radiation, no need for sedation and low costs. Regarding incidence of a pathologic lead point is up to 12% in most pediatric series and increases directly with age. The most common lead point for intussusception is Meckel's diverticulum.