中枢神经细胞瘤一例

患者　女 ,2 8岁。 3个月前无明显诱因出现头痛不适 ,有时伴耳鸣、视物模糊。无恶心、呕吐 ,无肢体感觉活动障碍。查体 :神志清 ,ＧＬＳ 15分。双瞳孔对光反射灵敏 ,四肢肌张力基本正常 ,病理反射未引出。ＣＴ扫描 :左侧脑室前部示一不规则略高密度灶 ,密度不均 ,形态不整 ,边缘呈绳索状 ,境界清楚 ,约 3.2ｃｍ× 3.0ｃｍ×3.0ｃｍ大小 ;增强扫描呈中度不均匀强化 ,左侧脑室扩大 (图1、2 )。ＭＲＩ示 :颅脑矢状位Ｔ1ＷＩ,轴位Ｔ1ＷＩ、ＰＤＷＩ、Ｔ2 ＷＩ见左侧脑室体部一分叶状高低混杂信号肿块 ,室间隔受压右移 ,左侧脑室三角区扩大 ,左侧…     

侧脑室中枢神经细胞瘤一例

患者 女,31岁。1年前无诱因出现头顶部疼痛（疼痛不剧烈）。之后疼痛逐渐加得,伴恶心、呕吐、呕吐物为胃内容物：无抽搐,无大、小便失禁与意识障碍;1个月前头痛明显加重且发作频繁。     

颈髓中枢神经细胞瘤一例

患者男,27岁.因右侧上肢乏力、右侧上下肢体感觉异常2年于2009年7月29日就诊.体检:一般情况良好.神经系统检查示右上肢肌力Ⅳ级,肌肉轻度萎缩,右上肢及右小腿痛觉过敏,右侧霍夫曼征阳性,右侧腱反射亢进. MRI表现:颈髓明显增粗,T1WT以等信号为主,夹杂小片状低信号,境界模糊,蛛网膜下腔明显变窄,局部闭塞;T2WI呈混杂信号影,内见多发片状及结节样高信号,注射Gd-DTPA后病灶明显不均匀强化.     

小脑延髓池中枢神经细胞瘤一例

病例资料患者,女,40岁。半年来头痛、头晕,双上肢震颤无力,走路不稳,偶有恶心、呕吐,有颈椎病史。外院CT未见明显异常,来我院行MRI检查,采用GE Signa 1.5T超导磁共振成像仪,行FLAIR T1WI、FRFSE T2WI序列及增强扫描,     

第四脑室中枢神经细胞瘤一例

患者男,27岁,于5个月前无明显诱因出现呕吐,3～4次/日,呕吐物为胃内容物,非喷射性,伴有头晕,时有轻微头胀痛感,按胃炎治疗无明显改善.1个月前出现行走不稳,足间距增宽,并渐出现记忆力下降、健忘,无肢体麻木、无力及口角歪斜等症状.体检:神志清楚,双眼视乳头水肿,站立不稳,闭目难立征阳性,余神经体征检查均阴性.     

中枢神经细胞瘤1例

患者 男,34岁。近半年来反复头痛、头晕并逐渐加重,伴恶心、频繁呕吐、视物模糊。查体：一般体检及化验室检查未发现异常。MRI平扫显示透明隔区不规则肿块,边缘分叶,并累及双侧脑室,伴梗阻性脑积水,T1WI呈等、低混杂信号（图1）,T2WI呈等、高混杂信号（图2）,增强后肿块中度强化,不均一,并见片状不强化囊变坏死区（图3）。MRI诊断：透明隔侧脑室肿瘤性病变,考虑中枢神经细胞瘤可能。     

侧脑室内中枢神经细胞瘤1例

<正>病人,男,24岁。1个月前患者无明显诱因出现头痛,以双额颞部为主,在头痛剧烈时偶有恶心、呕吐,呕吐物为胃内容物,未引起患者重视。后上述症状进行性加重,1周前在当地两家医院就诊,行头颅CT检查提示右侧侧脑室内肿瘤,梗阻性脑积水。行头颅MRI检查提示右侧侧脑室孟氏孔为中心可见一大小约4.6 cm×5.9 cm的肿块影,边界清楚,肿块信号混杂,大部分呈略长等T1略长等T信号影,信号混杂,并有少许长T长T信号     

四脑室中枢神经细胞瘤1例

患者 男,30岁.因头痛、恶心、呕吐半月余入院.半月前因胃部不适在服中药(具体不详)的过程中,出现头痛、恶心、呕吐,呈进行性加重,头痛剧烈时患者出现神智不清.住院前10 d,出现全身乏力不能行走,3 d前出现小便失禁.查体:意识模糊,对答不切题,无颈项强直,Kerning征阴性.近远视力正常,视野无缺损.     

脑室外中枢神经细胞瘤二例

中枢神经细胞瘤是中枢神经系统少见的肿瘤,1982年Hassoun等[1]首次报道.它绝大多数位于脑室内,最常见的部位是靠近透明隔和Monro氏孔区,少数可位于第三脑室或第四脑室[2-3].而发生于脑室外的中枢神经细胞瘤(extraventricular neurocytoma,EVN)非常少见.     

中枢神经细胞瘤MRI诊断1例

女,21岁。无诱因头晕并左侧肢体无力行走不稳2月,语言不流利,夜间小便偶有失禁。查体：神志清楚,心肺听诊正常,四肢肌容量正常,左侧肢体肌力接近5级,右侧5级,左侧肌张力高,右侧肌张力正常,共济运动、指指、指鼻试验不准确,闭目难立征试验阴性。化验检查：Hb131g／L,RBC4．15×10^12／L,WBC6．3×10^9/L,中性74．1％,淋巴20．7％;Na＋139．9mmol／L,K＋4．34mmol／L,C1107．1mmol／L,丙氨酸氨基转移酶18．0U／L,天冬氨酸氨基转移酶22．0U／L。     

非典型脑室外神经细胞瘤一例

患者男,47岁.1个月前无明显诱因出现左侧肢体活动不灵,呈进行性加重,近1周出现头痛,于2010年6月15日入院.体检:左侧鼻唇沟变浅,口角偏向右侧,左侧肢体肌力Ⅲ级,右侧肢体肌力Ⅴ级.     

Central neurocytoma: case report

The authors report a case of intraventricular tumor. The tumor was initially misdiagnosed as an oligodendroglioma but later proved to be a central neurocytoma. The imaging and histopathological features are reviewed. The immunopositivity allows a diagnosis of neurocytoma. Prognosis is favorable following total surgical resection, with low recurrence rate.     

Intramedullary tuberculoma: A case report

Study designWe report a case of intra-medullary tuberculoma in a 22 year-old man with progressive paraparesis and sphincter dysfunction.ObjectivesTo present a case of intra-medullary tuberculosis and to describe the MRI's contribution to the diagnosis.Summary of background dataIntra-medullary spinal tuberculoma is a rare form of central nervous system tuberculosis.The subject and diagnosis methodsThe patient, a 22 year-old man, presented with an intra-medullary tuberculoma of the dorsal spinal cord diagnosed after 6 month history of progressive paraparesis and sphincter dysfunction. MRI visualized ring enhancement of the intra-medullary dorsal lesion.ResultsTotal resection of the intra-medullary mass was performed through a posterior myelotomy. Histological examination revealed a granulomatous necrosis with caseum. The patient was treated with four anti-tuberculosis drugs in association with corticotherapy. The paraparesis and sphincter dysfunction improved.ConclusionsIntra-medullary spinal tuberculoma is rare, but must be considered in the differential diagnosis of spinal cord compression.     

脑室外神经细胞瘤1例

患者女性,44岁。1年前无明显诱因出现阵发性头痛,近3月渐加重,2天前头痛剧烈,伴呕吐而入院,无言语不顺及肢体偏瘫。体检:神经系统检查无阳性体征。院外CT平扫显示右颞部类圆形略高密度影,其内见多发钙化(图1),右侧脑室受压,中线结构向左移位。入院后MRI显示中颅     

Neuroradiology of central neurocytoma

Summary Central neurocytomas (CN) are rare, usually benign cerebral intraventricular neuroepithelial tumors, which occur in adult patients. Retrospective evaluation of the CT- and MRI-findings in eight cases as well as review of the cases reported in the literature showed that CN usually presents as a primarily slightly hyperdense and/or hyperintense mass within the body of the lateral ventricle with moderate contrast enhancement. The majority of tumors contain both multiple small cysts and calcifications and exhibit a characteristic broad based attachment to the superolateral ventricular wall. We conclude that these criteria appear to be reliable to exclude other intraventricular tumors such as astrocytoma, giant cell astrocytoma, ependymoma, subependymoma, intraventricular oligodendroglioma and meningioma. Preoperative diagnosis of CN may prove of value for planning therapy, because this tumor type seems to have a better prognosis than other intraventricular tumors.     

中枢神经细胞瘤的MR影像特征分析

目的:探讨中枢神经细胞瘤的MRI征象。方法:回顾性分析9例经手术和病理证实的中枢神经细胞瘤的MRI征象。结果:9例肿瘤中6例位于侧脑室前部Monro孔附近,1例位于右侧侧脑室体后部,1例位于三脑室,1例位于右侧额叶。9例病变均为囊实性,T1WI病变实性部分呈等或略低信号,囊性部分呈低信号;T2WI实性部分呈等或高信号,囊性部分呈高信号。囊性部分表现为肿瘤边缘或内部多发的蜂窝状改变,5例实性部分DWI呈高信号;增强扫描病变实性部分呈明显或中度强化。结论:结合MR影像学及病理表现,有助于明确中枢神经细胞瘤的诊断。