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中枢神经细胞瘤一例 总被引:2,自引:0,他引:2
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… 相似文献
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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. 相似文献
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中枢神经细胞瘤MRI诊断1例 总被引:1,自引:1,他引:0
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。 相似文献
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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. 相似文献
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《Radiography》2007,13(3):251-254
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. 相似文献
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Neuroradiology of central neurocytoma 总被引:8,自引:1,他引:7
W. Wichmann O. Schubiger A. v. Deimling Ch. Schenker A. Valavanis 《Neuroradiology》1991,33(2):143-148
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. 相似文献
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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。 相似文献