Intraosseous schwannoma of the metacarpal

Intraosseous schwannoma (neurilemmoma) is an extremely rare, benign neoplasm, constituting less than 0.2% of primary bone tumors. It infrequently involves the bones of the hand. We present a case of intraosseous neurilemmoma of the metacarpal. Received: 26 July 1999 Revision requested: 16 August 1999 Revision received: 16 September 1999 Accepted: 4 October 1999     

Epibulbar schwannoma in a 12-year-old boy: A case report and review of literature

Schwannomas are benign, encapsulated, primary neurilemmal tumors composed of proliferating Schwann cells. Schwannomas are commonly seen in the orbit, but are rare on the epibulbar surface. Herein, we report a case of a 12-year-old boy who presented to us with a slow-growing painless subconjunctival mass in the left eye. There was no intraocular extension of the mass and intra-operatively, the mass could be clearly delineated and was excised off the underlying sclera. Histopathological examination of the mass showed typical features of schwannoma and immunohistochemistry helped to confirm the diagnosis. There was no recurrence of the lesion observed at follow-up 26 months after surgery. Here, we describe this uncommon tumor and review the available literature. Although rare, an epibulbar schwannoma should be considered in the differential diagnosis of an amelanotic, painless subconjunctival nodular mass. Excision of the lesion is the recommended treatment.     

颅骨板障内纤维鞘瘤伴左顶叶血管畸形一例

颅骨板障内纤维鞘瘤伴左顶叶血管畸形是一种相对独立的相邻两部位同时发生病变的疾病,在临床较少见,本文通过回顾性分析2016年9月收治的1例颅骨板障内纤维鞘瘤伴左顶叶血管畸形患者的相关资料,对颅内肿瘤和血管畸形并存的这一现象进行报道。     

三叉神经鞘瘤的诊断和显微外科治疗策 略简

目的探讨三叉神经鞘瘤的诊断及治疗策略。方法回顾性分析41例三叉神经鞘瘤的病例资料。最常见症状为面部麻木或感觉减退。按肿瘤位置分为5型：颅中窝型3例,颅后窝型8例,颅中后窝哑铃型26例,颅中窝颅外型2例,颅中后窝颅外型2例。采用额颞硬膜外入路13例,颞底经天幕入路14例,乙状窦后入路11例,乙状窦前入路3例。结果肿瘤全切35例,次全切除5例,大部分切除1例。随访13例,时间3～84个月,复发2例。结论影像学检查对三叉神经鞘瘤诊断具有重要意义。个体化手术入路可获得满意的切除程度和较少并发症。     

侧脑室神经鞘瘤一例

女,29岁,间断性头痛8个月伴加重3 d。查体:颅神经检查未见异常,四肢肌张力正常,双侧肢体肌力5级,肢体无瘫痪,腱反射正常,病理征阴性。MRI检查:右侧顶部及侧脑室后角不规则囊实性信号影,大小为3.8 cm×3.4 cm×3.4cm,肿瘤实性部分呈TIWI等信号T2WI稍高信号(图1A、1B),T2 FLAIR及扩散加权成像(diffusion weighted imaging,DWI)呈稍高信号(图1C、1D),表观扩散系数(apparent diffusion coefficient,ADC)图信号未见明显降低,ADC值为0.2×10^-3 mm^2/s(图1E),囊性部分各序列与脑脊液信号相仿,内可见低信号分隔,增强扫描病灶实性部分呈明显较均匀强化,其内可见斑点状无强化区,囊壁及分隔未见明显强化(图1F、1G),周围脑组织呈TIWI稍低信号T2WI稍高信号。     

肺内稀有的原发性恶性肿瘤8例报道

我院１９５９年１月～１９８７年１２月肺切除共５９３１例，其中肺癌１６１９例，肺内稀有的原发性恶性肿瘤８例，包括血管外皮细胞瘤和肉瘤各２例、恶性淋巴瘤２例、平滑肌肉瘤和恶性神经鞘瘤各１例。全组肺叶切除６例、全肺切除２例；除１例术后９个月死于肺部感染外、其余７例均存活５年以上而无肿瘤复发或转移、存活最长２例，分别为１８年和２０年仍良好、五年生存率８７．５％。     

腮腺区面神经鞘瘤临床分析

[目的]探讨腮腺区面神经鞘瘤的临床特点和治疗方法。[方法]对7例腮腺区面神经鞘瘤行手术切除。[结果]1例术中误诊为恶性肿瘤而切除面神经致术后永久面瘫(面神经功能Ⅳ级),2例未损伤神经无面瘫,4例肿瘤切除后损伤面神经术后面瘫(面神经功能Ⅱ～Ⅲ级)。[结论]腮腺区面神经鞘瘤临床少见,术前易误诊,治疗以手术为主,肿瘤应完整切除,术中避免过度牵拉神经以免损伤。