Abstract：
The case was a 17-year-old young woman with a one-year history of recurrent abdominal pain and discomfort. B-scan ultrasonography identified intussusception and contrast-enhanced computed tomography of the pelvis revealed volvulus. A laparoscopic procedure was planned to identify the reason for the intussusception and obstruction. Intraoperatively, the intussusception was found to be caused by a cauliflower-shaped polypoid tumor measuring approximately 4 × 3 cm. Postoperative pathological examination identified the tumor to be a traditional serrated adenoma of the small intestine, which is rare and has atypical clinical manifestations. If unexplained abdominal pain or gastrointestinal bleeding occurs and an abdominal mass cannot be accurately located, laparoscopic or open surgery should be performed immediately. Early surgery is the most effective and reliable way of securing a prompt diagnosis and a favorable prognosis.
摘要：
该病例是一名17岁的年轻女性，有一年的反复腹痛和不适病史。B超检查可识别肠套叠，骨盆造影增强计算机断层扫描显示肠扭转。计划进行腹腔镜手术以确定肠套叠和梗阻的原因。术中,肠套叠被发现是由约4×3厘米的花椰菜状息肉样肿瘤引起的。术后病理检查确定肿瘤为传统的小肠锯齿状腺瘤，罕见，临床表现不典型。如果发生无法解释的腹痛或消化道出血，并且无法准确定位腹部肿块，应立即进行腹腔镜或开腹手术。早期手术是确保及时诊断和良好预后的最有效，最可靠的方法。
