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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=1739656650-DSruhAFO2IeJxllzYUj8IKF2Zp18f92h-0-39dd8eaa1d32794c06bc30540d4a9364)
图9-1-1 多形红斑
![](https://epubservercos.yuewen.com/2D47EB/21846772801639806/epubprivate/OEBPS/Images/P9-1-2_13820.jpg?sign=1739656650-sMdmHXXrNxMOJx4qXDSWqsNCLoTw4Q8a-0-2110cee1d0e64d60066a90ebd012cdd7)
图9-1-2 多形红斑
![](https://epubservercos.yuewen.com/2D47EB/21846772801639806/epubprivate/OEBPS/Images/P9-1-3_13821.jpg?sign=1739656650-ZNknCLL969v9XqoJGS7JufxyrWIvD1Bv-0-9afcf1f2b1061f561877f35f3b3d82bf)
图9-1-3 多形红斑
![](https://epubservercos.yuewen.com/2D47EB/21846772801639806/epubprivate/OEBPS/Images/P9-1-4_13822.jpg?sign=1739656650-0fALnGRLu7HIPKxzczmqJ4BEdNYDMtlf-0-bcfa93f963dc2121d0acbf9046f2a1b2)
图9-1-4 多形红斑
![](https://epubservercos.yuewen.com/2D47EB/21846772801639806/epubprivate/OEBPS/Images/P9-1-5_13823.jpg?sign=1739656650-HyZe2btMbyzerMRjGIiScd2Afg6pS6bQ-0-83b3115533793e4f14a54b661d9f9952)
图9-1-5 多形红斑
![](https://epubservercos.yuewen.com/2D47EB/21846772801639806/epubprivate/OEBPS/Images/P9-1-6_13824.jpg?sign=1739656650-n7OjREXvKLqh3BLiGLje2rcSQjmxI8PV-0-14128335ddcc6ee5060e89729934e45b)
图9-1-6 多形红斑
![](https://epubservercos.yuewen.com/2D47EB/21846772801639806/epubprivate/OEBPS/Images/P9-1-7_13825.jpg?sign=1739656650-BLAJVXG8JNQ3MB2YivgBQ714R9OQMykJ-0-7b6d5a74c305ffdb73ef2fc01d24d1fc)
图9-1-7 多形红斑
![](https://epubservercos.yuewen.com/2D47EB/21846772801639806/epubprivate/OEBPS/Images/P9-1-8_13826.jpg?sign=1739656650-QC6FUlwueI15lbavoLdc5NdWeAKQQ6wm-0-3598fb67ad34a4812328e5761c7e7d44)
图9-1-8 多形红斑