探讨成人肠套叠的发病机制和外科诊治方法。

回顾性分析单中心2005年1月至2018年1月间收治的150例成人肠套叠患者资料，139例行手术治疗，4例保守治疗，均恢复良好。7例拒绝治疗。

肠套叠类型包括小肠－小肠型36例；小肠－结肠型(回盲型)87例；结肠－结肠型27例。引起肠套叠原因主要是恶性肿瘤51例(36.7%)，良性肿瘤和息肉50例(36.0%)，炎症粘连23例(16.5%)，憩室6例(4.3%)。异位胰腺2例(1.4%)，以及特发性肠套叠7例(5. 0%)等。150例患者入院后为明确诊断，同一患者可能行2项甚至3项检查：其中138例接受腹部CT检查，26例行肠镜检查，22例行腹部超声，3例行钡剂灌肠造影(早期患者)。CT，肠镜，超声和钡灌肠造影的正确诊断率分别为97.8%，90.9%，92.3%和100%。

成人肠套叠多有明确病因，主要为良、恶性肿瘤。腹部CT是成人肠套叠首选的检查方法。术前明确诊断有利于实施精准手术，术式选择需根据肠套叠部位和类型、原发病的性质决定。

To explore the pathogenesis and surgical diagnosis and treatment of adult intussusception.

From January 2005 to January 2018, clinical data of 150 patients with adult intussusception were analyzed retrospectively, including 139 cases received surgical treatment and 4 cases underwent conservative treatment, while 7 cases refused any treatment.

A total of 150 patients included 36 cases of small intestine type, 87 cases of small intestine colon type (ileocecal type), 27 cases of colon colon type. The main causes of intussusception were malignant tumor of 51 cases (36.7%), benign tumor and polyp of 50 cases (36.0%), inflammatory adhesion of 23 cases (16.5%), diverticulum of 6 cases (4.3%). There were 2 cases of heterotopic pancreas (1.4%) and 7 cases of idiopathic intussusception (5.0%). In order to make a definite diagnosis, 150 patients had two or even three examinations: 138 cases received abdominal CT, 26 cases underwent enteroscopy, 22 cases underwent abdominal ultrasound, and 3 cases underwent barium enema (early stage). The correct diagnostic rates of CT, enteroscopy, ultrasonography and barium enema were 97.8%, 90.9%, 92.3% and 100%, respectively.

Adult intussusception has definite etiology, mainly benign and malignant tumors. Abdominal CT is the first choice for adult intussusception. A clear diagnosis before operation is conducive to the implementation of accurate surgery, and the choice of operation mode should be determined according to the location and type of intussusception and the nature of the primary disease.