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| Diagnostic Value of High-Frequency Ultrasound for Intussusception Secondary to Juvenile Polyps |
| TAN Bixing, HU Yuan, TANG Yiqian, LIU Jinqiao |
| Department of Ultrasound, Children's Hospital Affiliated to Xiangya School of Medical, Central South University (Hunan Provincial Children's Hospital), Changsha Hunan 410007 |
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Abstract 【Objective】To explore the diagnostic value of high-frequency ultrasound for intussusception secondary to juvenile polyps. 【Methods】 The clinical data of 66 children with pathologically-confirmed intussusception secondary to juvenile polyps admitted to Children's Hospital Affiliated to Xiangya Medical School, Central South University (Hunan Provincial Children's Hospital) from January 2020 to December 2025 were collected, and the diagnostic value of high-frequency ultrasound for this disease was analyzed. 【Results】 A total of 66 cases with 67 juvenile polyps were detected by high-frequency ultrasound, including 65 cases of single polyp (65 polyps) and 1 case of multiple polyps (2 polyps). A total of 71 juvenile polyps were confirmed by surgery and colonoscopy: 62 cases of single polyp (62 polyps) and 4 cases of multiple polyps (3 cases with 2 polyps, 1 case with 3 polyps). The detection rate of high-frequency ultrasound for juvenile polyps was 94.37% (67/71). The sonographic features of intussusception secondary to juvenile polyps were as follows: typical "target-ring sign" could be seen on short-axis section, with a solid, heterogeneous hypoechoic mass located in the center or on one side of the intestinal lumen; "sleeve sign" was observed on long-axis section. The hypoechoic mass was mostly oval or quasi-circular, connected to the intestinal wall on one side through a pedicle-like hypoechoic structure. Color Doppler flow imaging revealed abundant blood-flow signals within the hypoechoic mass, with blood flow entering the mass from the intestinal wall through the slender pedicle-like structure. 【Conclusion】 High-frequency ultrasound can clearly display the number, size and blood supply of polyps in children with intussusception secondary to juvenile polyps. It can also accurately locate the specific intestinal segment and involved scope of intussusception. It can be used as the preferred imaging modality for clinical diagnosis of intussusception secondary to juvenile polyps.
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Received: 26 March 2026
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2026, Vol. 43 
