Dermatology Department, Training and Research Hospital, Muğla Sıtkı Koçman University, Muğla, Turkey.
Dermatology Department, Medical Faculty, Muğla Sıtkı Koçman University, Muğla, Turkey.
Exp Dermatol. 2023 Nov;32(11):1996-1999. doi: 10.1111/exd.14930. Epub 2023 Sep 13.
The latest generation ultraviolet (UV) dermatoscopes, which emit UV light at a wavelength of 365 nm and enlarge lesions, are practical devices that can facilitate the diagnosis and follow-up of some dermatological diseases with fluorescence that can be observed in skin lesions. In 305 patients, 468 tunnels were evaluated: first in polarized mode and later in UV mode. The recorded samples were compared one-to-one by the same dermatologist. Due to the study's design, images were examined in three stages: tunnel borders, tunnel content and mite appearance. In UV mode, the entire body of mites gives a bright reflex along with an oval-shaped diagnostic clue well beyond the delta sign. The borders of the tunnel reflect brightly in UV mode, with borders that are more sharply visible than in polarized mode. Although the tunnel content cannot be clearly distinguished in polarized mode, especially in people with hyperkeratotic palms, or 'working hands' (e.g. farmers, mechanics and construction workers), with the bright reflex, the tunnel borders in UV mode give a bright reflection and provide a clear view of tunnels. Tunnel content gives a bright reflection in UV mode. Our results show that UV dermatoscopes provide more effective and clearer images than polarized dermatoscopes in the diagnosis of scabies.
最新一代的紫外线（UV）皮肤镜，发出波长为 365nm 的紫外线并放大病变，是一种实用的设备，可以帮助诊断和随访一些皮肤病，这些皮肤病在皮肤病变中可以观察到荧光。在 305 名患者中，评估了 468 个隧道：首先在偏振模式下，然后在 UV 模式下。由同一位皮肤科医生对记录的样本进行一对一比较。由于研究设计，图像分三个阶段进行检查：隧道边界、隧道内容和螨虫外观。在 UV 模式下，整个螨虫体发出明亮的反射，同时还有一个椭圆形的诊断线索，远远超出了三角洲符号。隧道边界在 UV 模式下反射明亮，边界比偏振模式下更清晰可见。虽然在偏振模式下，尤其是在手掌角化过度的人（如农民、机械师和建筑工人等“劳动手”）中，隧道内容无法清晰区分，但由于明亮的反射，UV 模式下的隧道边界会产生明亮的反射，清晰地显示出隧道。隧道内容在 UV 模式下会产生明亮的反射。我们的结果表明，在疥疮的诊断中，紫外线皮肤镜比偏振皮肤镜提供更有效和更清晰的图像。
