患儿,女,6岁,因背痛10天,双下肢不能站立行走2天于1991年9月14日初诊,病中无发热、头痛、呕吐等,否认既往有任何疾病史。体检:体温36.3℃,神清,营养发育正常,浅表淋巴结不大,痛苦面容,轻度贫血貌,被动体位,无颅神经损害,心肺腹正常,第五胸椎左侧处压痛+,双膝反射亢进、髌阵挛阳性,双上肢肌力正常,双下 Children, female, 6 years old, suffering from back pain for 10 days, can not stand for two lower extremities walking 2 days in September 14, 1991 newly diagnosed, the disease without fever, headache, vomiting, denied any previous history of the disease. Physical examination: body temperature 36.3 ℃, Shen Qing, normal nutrition and development, superficial lymph nodes, painful face, mild anemia appearance, passive position, no cranial nerve damage, cardiopulmonary abdomen normal, fifth thoracic left tenderness +, knees Hyperreflexia, positive patellar clonus, double upper limb muscle strength, double down