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接触性皮炎的诊断

来源:[标签:来源] | 发布时间:2011-06-13 00:52:07 | www.chinesejk.com

  1.有明确的接触史,所接触的物质有刺激性或抗原性。

  2.有一定的潜伏期,从接触到发生皮炎,短則数分钟,长則数日。接触物的刺激越大,潜伏期越短。如为变应原,则初次接触后4—20天。再次接触24小时内发病。

  3.病变多局限于接触部位,境界清楚。偶可扩展至身体他处。

  4.临床多呈急性皮炎改变,皮损为红斑、肿胀、水疱丘疹糜烂、滲出等。严重者有坏死贵疡、显著水肿。长期反复接触后可呈慢性皮炎改变,皮损为局部干燥、脱屑或皲裂。但临床上以单一皮损表现为主。

  5.自觉剧烈瘙痒,时有灼热及剧痛,全身症状轻微。

  6.可通过斑帖试验协助诊断。

  7.去除病因,处理得当,1~2周可痊愈。不接触致敏物一般不再复发。

(编辑:小米 )

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