新英格兰医学杂志病例学习疥疮

PatrickC.Carr,B.A.,andRobertT.Brodell,M.D.

NEnglJMed;:e13March17,DOI:10./NEJMicm

Scabies

全文如下:

A61-year-oldwomanpresentedwithseverepruriticrash,whichhadbeenpresentfor6months.Excoriatedpapuleswithhoney-coloredcrustingwerepresentontheabdomen,back(PanelA),arms,andlegs.

患者,女,61岁,严重的皮肤瘙痒6个月。体查:患者腹部、背部(图A)、手臂和腿处可见严重的丘疹,并伴有蜜色结痂。

Treatmentwithfluocinonidecreamanddoxycyclineforsuppurativefolliculitisandprurigonodularisforaperiodof4weeksproducednoresolutionoftherash.Abiopsyoftherashrevealedmixedinflammatoryinfiltratewitheosinophils,whichwassuggestiveofadrug-relatedrash.Discontinuationofallmedicationsresultedinnochange.Finally,skinscrapingsfromseveralwebspacesonthehands(scabiespreparation)showedamiteunderlightmicroscopy(PanelB).

既往:醋酸氟轻松乳膏(激素)和四环霉素联合治疗化脓性毛囊炎和结节性的痒疹4周,皮疹无明显好转。皮疹活检:伴有嗜酸性粒细胞的混合性炎性浸润,提示:药物相关性皮疹。停止所有的药物后,皮疹并没有好转。

最后,通过对手部的皮肤刮取检查(按疥疮标本准备),在光镜下看到了疥螨(图B)。

Topicalpermethrincreamthatwasappliedovernighttotheentirebodyandrepeatedin1weekclearedtherashwithin2weeksafterthefirstapplication.

百灭宁乳膏局部涂擦全身(晚上用),1周后重复1次。用药2周后皮疹痊愈。

Scabiesisamite-bornediseasecharacterizedbypruritusthatisclassicallyworseatnight.Untreateddiseasecanbeassociatedwithextensiveeczematizationoftheskinowingtoconstantscratching.Secondaryinfectionssuchasimpetigo,ecthyma,paronychia,orfurunculosiscanalsooccur.

疥疮是一种由疥螨引起的传染性疾病,典型症状是瘙痒,晚上尤甚。由于反复的抓挠,未经治疗时可能会与皮肤广泛性湿疹化有关(?)。同时可能引起继发感染,如脓疱疮,脓疱,甲沟炎或疖等。

Clinically,burrowsaredifficulttovisualizeandmaybedisguisedbyexcoriationsandimpetigo.Biopsyspecimensoftenshownonspecificchangeswithoutburrowsormites,sincepatientsmayhaveonly6to10mitesontheirentirecutaneoussurface.

临床上,抓伤和脓疱的掩盖,使得疥螨隧道很难被发现。由于疥疮患者皮下可能仅有6-10只疥螨,因此,活检标本常常显示为没有隧道和疥螨的非特异性改变。

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