原发性腹膜后神经鞘瘤的外科治疗

目的 探讨原发性腹膜后神经鞘瘤的诊治与预后.方法 回顾性分析1995年1月至2009年12月北京大学第一医院诊治的47例原发性腹膜后良、恶性神经鞘瘤患者的临床资料.结果 良性神经鞘瘤36例,中位年龄41岁,体检发现25例,有症状者11例;恶性神经鞘瘤11例,中位年龄38岁,体检发现5例,有症状者6例.术前CT和MRI诊断阳性率分别为36.2%(17/47)和58.3%(7/12).免疫组化染色良性组S-100阳性率100%;恶性组S-100阳性者率81.8%(9/11).47例患者均行手术治疗,良性组手术切除率100%,恶性组手术切除率90.9%(10/11),两组均无围手术期死亡患者,术后并发症5例(10.6%).良、恶性神经鞘瘤术后5年生存率分别为100%与45.5%.良性组术后复发2例;恶性组术后复发4例,远处转移3例.结论 腹膜后神经鞘瘤确诊依靠病理及免疫组化检查,手术完整切除是治疗主要方法.良性神经鞘瘤预后良好,恶性神经鞘瘤易转移和复发.

Abstract：

Objective To explore the clinical diagnosis and surgical treatment of primary retroperitoneal neurilemoma (schwannoma). Methods Clinical data of 47 patients of primary retroperitoneal schwannoma admitted and surgically treated from January 1995 to December 2009 were retrospectivelly reviewed. Results As diagnosed by pathology there were 36 cases of Benign schwannoma,with a median age at onset of 41 years, among those 11 patients were symptomatic, and 25 were asymptomatic. There were 11 malignant 11 cases, the median age was 38 years, among those 6 patients were symptomatic, and 5 were asymptomatic. The positive diagnostic rate of preoperative CT and MRI were 36. 2％ ( 17/47 ) and 58. 3％ ( 7/12 ) respectively. Immunohistochemically positive rates of S-100 were 100％ and 81.8％ (9/11) in benign and malignant group respectively. All cases underwent surgical treatment. Surgical resection rates for benign and malignant groups were 100％ and 90. 9％ (10/11)respectively. There was no perioperative death, Overall 5-year survival rates were 100％ and 45.5％ for benign and malignant tumors groups respectively. In benign group 2 cases recurred, in malignant group 4 cases recurred, and 3 had distant metastasis. Conclusions Primary retroperitoneal schwannomas are less common. It is difficult to make an accurate preoperative diagnosis. Surgery is the most effective therapy.Prognosis is good for benign and poor for malignant retroperitoneal neurilemomas.

Surgical resection of primary retroperitoneal schwannoma

Objective To explore the clinical diagnosis and surgical treatment of primary retroperitoneal neurilemoma (schwannoma). Methods Clinical data of 47 patients of primary retroperitoneal schwannoma admitted and surgically treated from January 1995 to December 2009 were retrospectivelly reviewed. Results As diagnosed by pathology there were 36 cases of Benign schwannoma,with a median age at onset of 41 years, among those 11 patients were symptomatic, and 25 were asymptomatic. There were 11 malignant 11 cases, the median age was 38 years, among those 6 patients were symptomatic, and 5 were asymptomatic. The positive diagnostic rate of preoperative CT and MRI were 36. 2％ ( 17/47 ) and 58. 3％ ( 7/12 ) respectively. Immunohistochemically positive rates of S-100 were 100％ and 81.8％ (9/11) in benign and malignant group respectively. All cases underwent surgical treatment. Surgical resection rates for benign and malignant groups were 100％ and 90. 9％ (10/11)respectively. There was no perioperative death, Overall 5-year survival rates were 100％ and 45.5％ for benign and malignant tumors groups respectively. In benign group 2 cases recurred, in malignant group 4 cases recurred, and 3 had distant metastasis. Conclusions Primary retroperitoneal schwannomas are less common. It is difficult to make an accurate preoperative diagnosis. Surgery is the most effective therapy.Prognosis is good for benign and poor for malignant retroperitoneal neurilemomas.