脑干脑炎的临床特点和磁共振成像诊断

目的：分析脑干脑炎的临床特点和磁共振成像的表现特点及诊断价值。方法：回顾分析15例脑干脑炎患者的临床表现和磁共振成像的特点,探讨其临床特点和磁共振成像的诊断价值。结果：患者以青壮年居多,多侵犯桥脑和中脑,可合并其他部位受累,脑脊液改变不明显,磁共振成像表现为脑干长T1、长T2信号改变。结论：脑干脑炎病因不明,可能与病毒感染后自身免疫损伤有关,多呈单相良性病程,激素治疗有效,预后良好,磁共振成像可以准确而可靠地反映脑干脑炎的病变性质、部位。

Clinical Features and MR Diagnosis of Brainstem Encephalitis

Objective：To analyze the clinical features and MRI characteristic of brainstem encephalitis and the applied value of MRI. Methods： 15 cases of brainstem encephalitis were analyzed their clinical features and MRI characteristic. Results：The disease was constantly found in the young and the middle -aged, the lesions had been mostly found in the pons and meseneephalon, or also involved in other parts. The changes of cerebralspinal fluid were not significant. MRI findings were long T1 , long T2 signals intensity. Conclnsions：The etiology of brainstem encephalitis is not known exactly, maybe related with the autoimmune damage after viral infection, the course was monophasic and benign. Cortieosteroid treatment is effective and the prognosis is favorable. MRI can make a correct and precise diagnosis of the brainstem encephalitis.