Objective:To investigate clinical and neuroimaging features of enterovirus71(EV71) related acute flaccid paralysis in patients with hand-fool-mouth disease.Methods:Nine patients with acute flaccid paralysis met the cr...Objective:To investigate clinical and neuroimaging features of enterovirus71(EV71) related acute flaccid paralysis in patients with hand-fool-mouth disease.Methods:Nine patients with acute flaccid paralysis met the criterion of EV71 induced hand-foot-mouth disease underwent spinal and brain MR imaging from May 2008 to Sep 2012.Results:One extremity flaccid was found in four cases(3 with lower limb,1 with upper limb),two limbs flaccid in three cases(2 with lower limbs,1 with upper limbs),and four limbs flaccid in two cases.Spinal MRI studies showed lesion with high signal in T2-weighted images(T2WI) and low signal T1-weighted images(T1WI) in the spinal cord of all nine cases,and the lesions were mainly in bilateral and unilateral anterior hom of cervical spinal cord and spinal cord below thoracic 9(T9) level.In addition,the midbrain,pons, and medulla,which were involved in 3 cases with brainstem encephalitis,demonstrated abnormal signal.Moreover,spinal cord contrast MRI studies showed mild enhancement in corresponding anterior hom of the involved side,and strong enhancement in its ventral root.Conclusions: EV71 related acute flaccid paralysis in patients with hand-foot-mouth disease mainly affected the anterior hom regions and ventral root of cervical spinal cord and spinal cord below T9 level. MR imaging could efficiendy show the characteristic pattern and extent of the lesions which correlated well with the clinical features.展开更多
目的:探讨肠道病毒71型(Enterovirus type 71,EV71)感染合并脑干脑炎的磁共振(Magnetic resonance imaging,MRI)特点,并根据MRI特点进行分型,分析分型与预后的关系,并探讨脑干脑炎的发病机制。方法:回顾性分析2008年5月至2010年9月中国...目的:探讨肠道病毒71型(Enterovirus type 71,EV71)感染合并脑干脑炎的磁共振(Magnetic resonance imaging,MRI)特点,并根据MRI特点进行分型,分析分型与预后的关系,并探讨脑干脑炎的发病机制。方法:回顾性分析2008年5月至2010年9月中国海南EV71感染流行期间21例伴有脑干脑炎手足口病(Hand-foot-mouth disease,HFMD)患儿临床、MRI表现,并随访3个月至2年不等。结果:根据MRI特征将脑干脑炎归类为Ⅰ型13例,表现为脑干后部局限性单侧或双侧对称性斑点状长T1长T2信号,部分合并脊髓前角的损害,随访发现2例死亡,7例完全康复,4例遗留不同程度的神经系统后遗症,复查MRI发现2例遗留延髓及桥脑病灶;脑干脑炎Ⅱ型8例,表现为脑干后部模糊的片状稍长T1稍长T2信号,随访发现6例完全康复,2例遗留轻度后遗症;复查MRI发现仅1例遗留延髓病灶。脑干脑炎Ⅱ型预后好于Ⅰ型。结论:MRI是评价EV71型感染手足口病合并脑干脑炎的有效方法,损害部位常位于脑干被盖部,影像表现具有相对特异性;以影像学表现进行的分型有助于对预后的判断。展开更多
基金funded by the Hainan Natural Science Foundation 310119Haiman Health Institution Project(No 2011-22)
文摘Objective:To investigate clinical and neuroimaging features of enterovirus71(EV71) related acute flaccid paralysis in patients with hand-fool-mouth disease.Methods:Nine patients with acute flaccid paralysis met the criterion of EV71 induced hand-foot-mouth disease underwent spinal and brain MR imaging from May 2008 to Sep 2012.Results:One extremity flaccid was found in four cases(3 with lower limb,1 with upper limb),two limbs flaccid in three cases(2 with lower limbs,1 with upper limbs),and four limbs flaccid in two cases.Spinal MRI studies showed lesion with high signal in T2-weighted images(T2WI) and low signal T1-weighted images(T1WI) in the spinal cord of all nine cases,and the lesions were mainly in bilateral and unilateral anterior hom of cervical spinal cord and spinal cord below thoracic 9(T9) level.In addition,the midbrain,pons, and medulla,which were involved in 3 cases with brainstem encephalitis,demonstrated abnormal signal.Moreover,spinal cord contrast MRI studies showed mild enhancement in corresponding anterior hom of the involved side,and strong enhancement in its ventral root.Conclusions: EV71 related acute flaccid paralysis in patients with hand-foot-mouth disease mainly affected the anterior hom regions and ventral root of cervical spinal cord and spinal cord below T9 level. MR imaging could efficiendy show the characteristic pattern and extent of the lesions which correlated well with the clinical features.
