定位診斷徐評(píng)議ppt課件(參考版)
2025-02-24 12:15本頁(yè)面
【正文】 ? Onset sudden and bilateral 。 quadriceps and ankle reflexes normal無(wú)雙下肢癱瘓，也無(wú)錐體束征。 CAUDA EQUINA SYNDROME 腰膨大（腰 1～骶 2）： ? disk herniation 椎間盤(pán)突出 ? spinal root symptoms (., paresthesias, pain, sensory loss, hyporeflexia, and muscle weakness).神經(jīng)根受壓癥狀 ? Severe radicular unilateral pain 放射性痛 ? ? △ leg anteriorUnilateral muscle atrophy and absent quadriceps (L3) and ankle jerks (S1), Flacciad paralysis ? △ cohort L1— 3 腰 2～ 4受損則膝反射往往消失 ? △ sole of foot， postcohort S1— 2 骶 1～ 2受損則踝反射往往消失。受損節(jié)段常伴有束帶感。 ? C8T1如頸 8胸 1節(jié)段側(cè)角細(xì)胞受損時(shí)產(chǎn)生Horner ‘s syndrome。 ? Unilateral muscle atrophy and absent quadriceps (L3) and ankle jerks (S1)下肢可有周?chē)园c， ? Incontinence and sdxual functions are not marked ? Onset gradual and unilateral括約肌障礙常不明顯。神經(jīng)系統(tǒng)定位診斷 Neural location diagnosis 徐評(píng)議 ? Midbrain 中腦 ? Pons 腦 橋 ? Medulla 延髓 Cross damage ? Same (ipsilateral) ? other (contralateral ) Brain stem brain stemMidbrain中腦 Weber syn: 動(dòng)眼 N與錐體束 Parinaud’s syn 紅核震顫 上丘 1 Weber syndrome:動(dòng)眼 N麻痹 ,對(duì)側(cè)中樞性偏癱 (錐體束 ) Third nerve palsy: ? Unilateral pupil dilated ? None reaction to li
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