Toledano Delgado R, Garcia N, Riva-Amarante E, Rodríguez Pascual J, García Leal R, Sendra Tello J
Servicio de Neurologia, Hospital Ramón y Cajal, Madrid.
Neurologia. 2006 Sep;21(7):378-81.
Glioblastoma multiforme (GBM) is the most common primary malignant tumor of the central nervous system. Its tendency to infiltrate and recur locally is well known. Spinal leptomeningeal metastasis (SLM) due to a GBM are well documented at autopsy in patients previously diagnosed of GBM, however, systemic dissemination with symptomatic leptomeningeal metastasis is quite rare. Most of the time it is diagnosed late and misdiagnosis is a common problem.
We present a case of a 65-year-old man with a right temporal GBM treated by surgical resection, radiotherapy and chemotherapy, who is readmitted 10 months later as he developed an ataxic gait. A new cerebral magnetic resonance imaging (MRI) showed multiple cerebellar metastasis. He also reported intense lumbar pain on the new admission, increasing in intensity and that was followed by flaccid paraparesis two weeks later. Multiple spinal metastasis deposits were documented by a contrast enhanced spinal MRI.
SLM need to be suspected in patients with a past history of intracranial GBM, who present with clinical features that can not been explained by the primary lesion. Awareness of this complication might facilitate more rapid diagnosis and treatment. A discussion is made regarding SLM in patients with GBM with reference to the medical literature.
多形性胶质母细胞瘤(GBM)是中枢神经系统最常见的原发性恶性肿瘤。其局部浸润和复发的倾向众所周知。GBM导致的脊髓软脑膜转移(SLM)在先前诊断为GBM的患者尸检中已有充分记录,然而,伴有症状性软脑膜转移的全身播散相当罕见。大多数情况下,其诊断较晚,误诊是一个常见问题。
我们报告一例65岁男性患者,患有右侧颞叶GBM,接受了手术切除、放疗和化疗,10个月后因出现共济失调步态再次入院。新的脑部磁共振成像(MRI)显示多发小脑转移。他在再次入院时还报告有剧烈腰痛,疼痛加剧,两周后出现弛缓性截瘫。增强脊柱MRI显示多发脊柱转移灶。
对于有颅内GBM病史且出现无法用原发灶解释的临床特征的患者,需要怀疑存在SLM。认识到这种并发症可能有助于更快速的诊断和治疗。参考医学文献对GBM患者的SLM进行了讨论。