Inflammatory demyelinating pseudotumor usually occurs in the brain and rarely occurs in the spinal cord. On imaging, inflammatory demyelinating pseudotumor appears very similar to intramedullary tumors such as gliomas...Inflammatory demyelinating pseudotumor usually occurs in the brain and rarely occurs in the spinal cord. On imaging, inflammatory demyelinating pseudotumor appears very similar to intramedullary tumors such as gliomas. It is often misdiagnosed as intramedullary tumor and surgically resected. In view of this, the clinical and magnetic resonance imaging manifestations and the pathological fea- tures of 36 cases of inflammatory demyelinating pseudotumer in the spinal cord were retrospec- tively analyzed and summarized. Most of these cases suffered from acute or subacute onset and exhibited a sensofimotor disorder. Among them, six cases were misdiagnosed as having intrame- dullary gliomas, and inflammatory demyelinating pseudotumor was only identified and pathologically confirmed after surgical resection. Lesions in the cervical and thoracic spinal cord were common. Magnetic resonance imaging revealed edema and space-occupying lesions to varying degrees at the cervical-thoracic junction, with a predominant feature of non-closed rosette-like reinforcement （open-loop sign）. Pathological examination showed perivascular cuffing of predominantly dense lymphocytes, and demyelination was observed in six of the misdiagnosed cases. These re- sults suggest that tumor-like inflammatory demyelinating disease in the spinal cord is a kind of special demyelinating disease that can be categorized as inflammatory pseudotumor. These solitary lesions are easily confused with intramedullary neoplasms. Patchy or non-closed reinforcement （open-ring sign） on magnetic resonance imaging is the predominant property of inflammatory de- myelinating pseudotumor, and inflammatory cell infiltration and demyelination are additional patho- logical properties.展开更多
Intramedullary spinal cord metastasis(ISCM) is very rare and its optimal treatment remains controversial. Pancreatic neuroendocrine tumor(pNET) is a rare tumor that usually presents with hepatic metastasis. Hepatic fa...Intramedullary spinal cord metastasis(ISCM) is very rare and its optimal treatment remains controversial. Pancreatic neuroendocrine tumor(pNET) is a rare tumor that usually presents with hepatic metastasis. Hepatic failure due to tumor progression is the major cause of death in cases of pNET. To date,no report has described a case of ISCM from pNET. Although spinal cord metastasis of a solid tumor is uncommon,it is a critical condition that can cause a potentially irreversible loss of neurologic function. Here,we report the case of a 45-year-old man who presented with leg weakness and voiding difficulty,and was found to have ISCM from pNET. Surgical treatment prevented further neurological deterioration. This is the first case report of ISCM from pNET.展开更多
目的:探讨肺癌脊柱转移瘤的手术治疗疗效和预后影响因素。方法:对2005年4月至2012年4月在北京大学第三医院骨科住院治疗且病理诊断明确的35例肺癌脊柱转移瘤患者的临床资料进行回顾性分析。根据治疗方法不同分为手术治疗组和保守治疗组...目的:探讨肺癌脊柱转移瘤的手术治疗疗效和预后影响因素。方法:对2005年4月至2012年4月在北京大学第三医院骨科住院治疗且病理诊断明确的35例肺癌脊柱转移瘤患者的临床资料进行回顾性分析。根据治疗方法不同分为手术治疗组和保守治疗组,比较手术组患者手术前后的疼痛程度、生活质量及神经功能状态;分析患者的生存期与放射治疗、内科治疗(化学治疗和/或靶向治疗)、手术治疗、神经功能状态和生活质量的关系。结果:28例(80%,28/35)获得随访资料,手术组22例,保守组6例。手术组疼痛程度和生活质量明显改善:视觉疼痛评分(visual analog scale,VAS)的中位数从术前的7分下降至术后3分(z=4.143,P<0.05),Karnorfsky日常状态评分的中位数从术前的50分上升至术后60分(z=3.825,P<0.05)。手术组有13例伴神经功能损害的患者术后神经功能明显改善(z=2.530,P<0.05)。生存分析结果显示内科治疗对肺癌脊柱转移瘤患者的生存期有显著影响(P=0.001),手术治疗、放射治疗、神经功能状态和生活质量对生存期无明显影响。结论:手术治疗肺癌脊柱转移瘤能有效缓解患者的疼痛程度,提高生活质量,改善神经功能;影响肺癌脊柱转移瘤患者生存期的主要因素是内科治疗。展开更多
文摘Inflammatory demyelinating pseudotumor usually occurs in the brain and rarely occurs in the spinal cord. On imaging, inflammatory demyelinating pseudotumor appears very similar to intramedullary tumors such as gliomas. It is often misdiagnosed as intramedullary tumor and surgically resected. In view of this, the clinical and magnetic resonance imaging manifestations and the pathological fea- tures of 36 cases of inflammatory demyelinating pseudotumer in the spinal cord were retrospec- tively analyzed and summarized. Most of these cases suffered from acute or subacute onset and exhibited a sensofimotor disorder. Among them, six cases were misdiagnosed as having intrame- dullary gliomas, and inflammatory demyelinating pseudotumor was only identified and pathologically confirmed after surgical resection. Lesions in the cervical and thoracic spinal cord were common. Magnetic resonance imaging revealed edema and space-occupying lesions to varying degrees at the cervical-thoracic junction, with a predominant feature of non-closed rosette-like reinforcement （open-loop sign）. Pathological examination showed perivascular cuffing of predominantly dense lymphocytes, and demyelination was observed in six of the misdiagnosed cases. These re- sults suggest that tumor-like inflammatory demyelinating disease in the spinal cord is a kind of special demyelinating disease that can be categorized as inflammatory pseudotumor. These solitary lesions are easily confused with intramedullary neoplasms. Patchy or non-closed reinforcement （open-ring sign） on magnetic resonance imaging is the predominant property of inflammatory de- myelinating pseudotumor, and inflammatory cell infiltration and demyelination are additional patho- logical properties.
基金Supported by Grant from Gachon University Gil Medical Center,No.2013-37
文摘Intramedullary spinal cord metastasis(ISCM) is very rare and its optimal treatment remains controversial. Pancreatic neuroendocrine tumor(pNET) is a rare tumor that usually presents with hepatic metastasis. Hepatic failure due to tumor progression is the major cause of death in cases of pNET. To date,no report has described a case of ISCM from pNET. Although spinal cord metastasis of a solid tumor is uncommon,it is a critical condition that can cause a potentially irreversible loss of neurologic function. Here,we report the case of a 45-year-old man who presented with leg weakness and voiding difficulty,and was found to have ISCM from pNET. Surgical treatment prevented further neurological deterioration. This is the first case report of ISCM from pNET.
文摘目的:探讨颈椎、胸椎及腰椎肿瘤在锥形束CT(cone beam CT,CBCT)影像引导下的调强放射治疗(image guided radiation therapy,IGRT)六自由度摆位误差分析。方法:收集2013年5月至2014年6月在北京大学第三医院行脊柱恶性肿瘤放疗的患者30例,其中颈椎肿瘤10例,胸椎肿瘤10例,腰椎肿瘤10例。采用瑞典医科达(ELEKTA)公司AXESSE直线加速器CBCT引导,用Hexa PODTMevoRT床从平移和旋转六自由度方向在线校正摆位误差,CT模拟定位获取治疗计划参考图像(层厚3 mm,120 k V,200 m As)。每次治疗前行千伏级(k V级)CBCT扫描(100 k V,36.6 m As,s20射野准直器),CBCT图像采用骨窗模式与计划参考图像自动匹配,并经高资质医师和物理师共同确认,误差校正后再次行CBCT扫描,将两次图像与计划参考图像分别进行匹配验证。本研究共收集838次摆位校正前、后匹配结果,分别记录患者平移摆位误差左右方向X(lateral)、进出方向Y(lngitudinal)、升降方向Z(vertical)、旋转误差俯仰方向RX(pitch)、滚动方向RY(roll)及左右旋转方向RZ(yaw)匹配结果。应用SPSS13.0统计软件,对Hexa PODTMevoRT床校正前后位移误差数据行配对t检验。结果:椎体肿瘤摆位误差(绝对值)中,3个平移X、Y和Z方向摆位误差结果分别为颈椎(1.71±0.10)mm、(1.81±0.11)mm和(1.94±0.09)mm;胸椎(3.17±0.19)mm、(4.26±0.28)mm和(2.18±0.12)mm;腰椎(2.69±0.24)mm、(3.33±0.26)mm和(2.86±0.21)mm。患者摆位后首次CBCT获得摆位误差数据与误差纠正后(动床后)再次CBCT验证后获得残余误差数据3个平移X、Y和Z方向分别为颈椎(0.5±2.4)mm、(0.01±2.4)mm和(2.4±1.4)mm,胸椎(1.17±0.11)mm、(0.26±0.30)mm和(0.08±0.12)mm,腰椎(1.09±0.24)mm、(2.03±1.26)mm和(0.06±0.51)mm。进行配对t检验结果:颈椎及胸椎平移3个方向误差纠正前后差异均有统计学意义;腰椎仅是升降Z方向平移误差纠正前后差异统计学有意义(t=-3.518,P<0.001)。3个旋转RX、RY和RZ方向摆位误差分别为颈椎肿瘤0.67°±0.04°、1.06°±0.06°和0.78°±0.05°,胸椎0.62°±0.05°、0.75°±0.06°和0.84°±0.06°,腰椎0.59°±0.06°、0.80°±0.07°和0.73°±0.06°;误差纠正后(动床后)再次CBCT验证后获得残余误差数据3个旋转方向RX、RY和RZ方向分别为颈椎肿瘤0.27°±0.14°、1.20°±0.04°和0.28°±0.05°,胸椎0.02°±0.20°、0.05°±0.26°和0.64°±0.16°,腰椎0.09°±0.26°、0.50°±0.05°和0.03°±0.16°,误差纠正前后颈椎和腰椎旋转3个方向差异均具有统计学意义,胸椎仅是滚动方向RY方向差异有统计学意义(t=7.106,P<0.001)。30例患者疼痛均有缓解,未发现放疗副反应。结论:IGRT下Hexa PODTMevoRT床对脊柱肿瘤放射治疗的摆位误差纠正有明显作用,建议采用在线校正脊柱肿瘤放射治疗摆位误差。
文摘目的:探讨肺癌脊柱转移瘤的手术治疗疗效和预后影响因素。方法:对2005年4月至2012年4月在北京大学第三医院骨科住院治疗且病理诊断明确的35例肺癌脊柱转移瘤患者的临床资料进行回顾性分析。根据治疗方法不同分为手术治疗组和保守治疗组,比较手术组患者手术前后的疼痛程度、生活质量及神经功能状态;分析患者的生存期与放射治疗、内科治疗(化学治疗和/或靶向治疗)、手术治疗、神经功能状态和生活质量的关系。结果:28例(80%,28/35)获得随访资料,手术组22例,保守组6例。手术组疼痛程度和生活质量明显改善:视觉疼痛评分(visual analog scale,VAS)的中位数从术前的7分下降至术后3分(z=4.143,P<0.05),Karnorfsky日常状态评分的中位数从术前的50分上升至术后60分(z=3.825,P<0.05)。手术组有13例伴神经功能损害的患者术后神经功能明显改善(z=2.530,P<0.05)。生存分析结果显示内科治疗对肺癌脊柱转移瘤患者的生存期有显著影响(P=0.001),手术治疗、放射治疗、神经功能状态和生活质量对生存期无明显影响。结论:手术治疗肺癌脊柱转移瘤能有效缓解患者的疼痛程度,提高生活质量,改善神经功能;影响肺癌脊柱转移瘤患者生存期的主要因素是内科治疗。
