Park Ju Hyuk, Kim Chul Woo, Kim Sang Seok
Department of Dermatology, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea.
Ann Dermatol. 2012 May;24(2):194-9. doi: 10.5021/ad.2012.24.2.194. Epub 2012 Apr 26.
Scabies is a contagious skin infestation characterized clinically by nocturnal pruritus, visible burrows and contagiousness. Dermoscopy has been suggested as an alternative for diagnosing scabies. But, there have been few well-designed studies evaluating the diagnostic accuracy of dermoscopy.
We tried to confirm the diagnostic accuracy of dermoscopy for diagnosing scabies. We also tried to demonstrate specific circumstances in which dermoscopic identification of mites ("with dermoscopy") is more useful in diagnosing scabies, and to identify the specific clinical findings that could be used as a possible marker in diagnosing scabies.
We compared the scraping procedure "with dermoscopy" and "without it" in 49 patients, measuring the duration and outcome of each procedure. Also, we tried to find the specific clinical factors associated with our objects.
The skin scraping "with dermoscopy" was superior to "without it" with respect to the duration and accuracy of the procedure. A history of previous steroid treatment was associated with the superiority of dermoscopy. The correlation between the presence of visible burrows and the positive outcomes of "with dermoscopy" was statistically significant.
Skin scraping with dermoscopy is implicated as the diagnostic method of choice for scabies at the present time. Dermoscopy is especially useful in diagnosis of incognito scabies. In addition, the presence of visible burrows could be a reliable positive marker of scabies in the absence of dermoscopy or microscopy data.
疥疮是一种传染性皮肤寄生虫病，临床上以夜间瘙痒、可见的隧道和传染性为特征。皮肤镜检查已被建议作为诊断疥疮的一种替代方法。但是，很少有设计良好的研究评估皮肤镜检查的诊断准确性。
我们试图确认皮肤镜检查诊断疥疮的准确性。我们还试图证明在哪些特定情况下，皮肤镜下识别螨虫（“使用皮肤镜检查”）在诊断疥疮时更有用，并确定可作为诊断疥疮可能标志物的特定临床发现。
我们对49例患者进行了“使用皮肤镜检查”和“不使用皮肤镜检查”的刮擦程序比较，测量了每个程序的持续时间和结果。此外，我们试图找出与我们的目标相关的特定临床因素。
就程序的持续时间和准确性而言，“使用皮肤镜检查”的皮肤刮擦优于“不使用皮肤镜检查”。既往使用类固醇治疗的病史与皮肤镜检查的优越性相关。可见隧道的存在与“使用皮肤镜检查”的阳性结果之间的相关性具有统计学意义。
目前，使用皮肤镜检查的皮肤刮擦被认为是诊断疥疮的首选方法。皮肤镜检查在隐匿性疥疮的诊断中特别有用。此外，在没有皮肤镜检查或显微镜检查数据的情况下，可见隧道的存在可能是疥疮可靠的阳性标志物。
