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,共四十 頁 。 Characteristics of Neurology1 The plexity of the disease Nervous system and muscle structure is very plicated, if several parts of both of them damaged, the symptoms will overlap This is why we usually make direction, localization, qualitation diagnosis第十二 頁 ,共四十 頁 。 Characteristics of Neurology2 The extensiveness of symptoms One disease can have different symptoms Example: Encephalitis can include headache and epilepsy Same symptom can origin from different disease Example: Headache can be caused by encephalitis, also by tumors第十三 頁 ,共四十 頁 。 Characteristics of Neurology3 The Dependence of diagnosis Scientific development makes the Neurologist more and more dependent on auxiliary examination: CT: Cerebral hemorrhage MRI: Multiple sclerosis Serology: Syphilis 第十四 頁 ,共四十 頁 。腦 CT掃描提示頸內(nèi)動脈血栓 (xu232。shuān)形成致左側(cè)大腦半球低密度梗死(箭頭),同側(cè)腦室受壓變小 第十五 頁 ,共四十 頁 。腦 CT掃描提示右側(cè)大腦 (d224。nǎo)半球出血性梗死,即低密度的梗死灶(星號)周圍伴有點(diǎn)片狀高密度出血灶(箭頭)第十六 頁 ,共四十 頁 。 腦 CT掃描 (sǎomi225。o)提示溶栓后發(fā)生的右側(cè)大腦半球出血性梗死,即在低密度梗死灶(星號)內(nèi)伴發(fā)大片高密度出血灶(箭頭) 第十七 頁 ,共四十 頁 。腦 MRI提示 (t237。sh236。)腦干梗死(箭頭)呈長 T2信號 第十八 頁 ,共四十 頁 。腦 CT掃描 (sǎomi225。o)提示多發(fā)性腦栓塞致雙側(cè)大腦半球多發(fā)性腦梗死(箭頭) 第十九 頁 ,共四十 頁 。腦 CT掃描 (sǎomi225。o)提示左側(cè)基底節(jié)區(qū)出血呈均勻高密度病灶(箭頭)第二十 頁 ,共四十 頁 。腦 CT掃描提示腦干出血(箭頭 (ji224。nt243。u))呈高