不同病理类型脑膜瘤对周围组织侵袭性的研究

A research on invasion of different types of meningeomas to the surrounding tissue

目的 研究不同病理类型脑膜瘤对周围组织的侵袭性.方法 分析我院2009年4月至2010年6月行手术治疗达Simposon Ⅰ级切除的脑膜瘤患者手术标本124例;病理类型参照WHO2007年版中枢神经系统肿瘤分型,通过病理连续切片分析肿瘤对周围组织的侵袭性.结果 脑膜瘤侵袭性主要表现为纵向和横向侵袭.良性脑膜瘤对基底硬膜侵袭常见,但对骨质和脑组织侵袭少见;非良性脑膜瘤对硬膜、骨质以及脑组织均有明显的侵袭;部分良性脑膜瘤对周边硬膜存在横向侵袭,范围绝大多数在2 cm以内;绝大多数非良性脑膜瘤对周边硬膜存在明显的侵袭,范围在2 cm以外.结论 脑膜瘤不同的病理亚型对周围组织侵袭有所不同.强调术中冰冻病理以及针对不同病理亚型选择术中着重处理点,对降低脑膜瘤术后复发率有重要意义.

Objective To explore the invasion of different types of meningeoma to the surrounding tissue. Method The specimen from 124 patients with meningeomas, who underwent surgery in Southern Hospital from April 2009 to June 2010 were used to analyze the invasion of different types of meningeomas to the surrounding tissue. All the tumor were resected in the standard of Simposon I. We referred to WHO 2007 edition to indentify the type of pathology. Results The invasion included longitudinal type and transversal type. The invasion in the basal dura mater was commonly seen in the benign meningioma, while the invasion was rarely seen in the bone and brain. As to the non - benign meningioma, invasion was commonly seen in dural mater, bone and brain. Some benign meningioma could invase the peripheral dural mater within the range of 2 cm, while most non - benign meningioma invased the peripheral dural mater beyond the range of 2 cm. Conclusions Different types of the 124 cases of meningioma own different characters on the invasion. The frozen pathological examination during the operation and special treatment on the key point of the surrounding tissue may decrease the relapse rate after operation.