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第九章 红斑性皮肤病、药疹及荨麻疹
Erythematous Dermatoses,Drug Eruption and Urticaria
多形红斑 Erythema Multiforme
皮疹呈多形性,靶形皮疹具有特征性。病因与单纯疱疹病毒感染有关。重症多形红斑(Stevens-Johnson syndrome)可由药物过敏引起。
诊断要点:
多见于中青年。好发于肢端、手、足、口周、鼻及耳廓,严重者可泛发全身。常侵及皮肤黏膜交界处,如口唇。以春秋季多见,可以复发。患者有大小不等浮肿性红斑,中央有水疱、大疱、渗出。典型皮损为靶形(虹膜状)损害。重症多形红斑除皮损广泛严重外,常有眼结膜、口腔黏膜、外阴及消化道黏膜受累,出现大疱、糜烂等,患者有高热等全身症状,严重时可危及生命。
治疗要点:
本病多数在几周内自行消退,一般做对症处理。反复发作者,可针对单纯疹病毒感染,给予阿昔洛韦等抗病毒药物。重症多形红斑患者系统用糖皮质激素。对黏膜损害应加强对症治疗。
![](https://epubservercos.yuewen.com/2D47EB/21846772801639806/epubprivate/OEBPS/Images/P9-1-1_13819.jpg?sign=1739026956-Hkeop6MT8cq3bnN5ESDCFbNQjf2pCPQt-0-cec1572c643af1795c1709aab54d0f44)
图9-1-1 多形红斑
![](https://epubservercos.yuewen.com/2D47EB/21846772801639806/epubprivate/OEBPS/Images/P9-1-2_13820.jpg?sign=1739026956-CReoHsVnrTwNvk8pwVQmmnzpe1Fd9Pvu-0-a5cb46909a2d3ac2b4aea3321867d4f4)
图9-1-2 多形红斑
![](https://epubservercos.yuewen.com/2D47EB/21846772801639806/epubprivate/OEBPS/Images/P9-1-3_13821.jpg?sign=1739026956-eO3aUAFzBvpLfj4o5hcr7AuzLwstggN6-0-4f2609e63e1a0e0a3a05dcb986fef883)
图9-1-3 多形红斑
![](https://epubservercos.yuewen.com/2D47EB/21846772801639806/epubprivate/OEBPS/Images/P9-1-4_13822.jpg?sign=1739026956-47eWRmFiYWiunZ6VshnF6w1p462LVc0u-0-1033909e4ee3a3d8aa4ffc075e53236a)
图9-1-4 多形红斑
![](https://epubservercos.yuewen.com/2D47EB/21846772801639806/epubprivate/OEBPS/Images/P9-1-5_13823.jpg?sign=1739026956-UIr6Dq0soRzI3ofIdWKpwlbZy3JCXvpx-0-6dea2d998e9092ad355a26a8edd34677)
图9-1-5 多形红斑
![](https://epubservercos.yuewen.com/2D47EB/21846772801639806/epubprivate/OEBPS/Images/P9-1-6_13824.jpg?sign=1739026956-Iu3mpIVwVAiUh3nozDtXLIiugws7YIFA-0-418d716eb3faf40edd44310a93db7f20)
图9-1-6 多形红斑
![](https://epubservercos.yuewen.com/2D47EB/21846772801639806/epubprivate/OEBPS/Images/P9-1-7_13825.jpg?sign=1739026956-p8KbZ0bF9IPCEI30u5SiqrLSCIjIkHeF-0-0e0c3946fb5c55a1d55262d46d0f6a70)
图9-1-7 多形红斑
![](https://epubservercos.yuewen.com/2D47EB/21846772801639806/epubprivate/OEBPS/Images/P9-1-8_13826.jpg?sign=1739026956-YOElOdQ3tdLLzPq7cixLtzZeDhVCZeSp-0-dbd29e2239215413726a244fcd6c14dd)
图9-1-8 多形红斑