Abstract：
BACKGROUND: Nail psoriasis is common in psoriasis vulgaris and even more prevalent in psoriatic arthritis. Dermatoscopy of the nail proves helpful in enhancing the visualization of psoriatic nail lesions.
OBJECTIVE: This systematic review aimed to summarize the existing studies published in the literature that reported the various dermoscopic features of nail psoriasis.
METHODS: A systematic search of two medical databases, PubMed and Scopus, was conducted in April 2023. In total, 11 records were included. The number of reported cases in the included studies was 723.
RESULTS: The average age was 42.39 years. Sixty percent of patients were males, and 40% were females. Pitting constituted the most common onychoscopic feature indicating nail matrix involvement, followed by various other features such as leukonychia, nail plate thickening, transverse and longitudinal ridges, and different lunula abnormalities. The predominant onychoscopic feature indicating nail bed involvement was onycholysis, followed by splinter hemorrhages, oil drop sign, subungual hyperkeratosis, dilated capillaries, agminated capillary dots, erythematous border, and pustules. Vascular abnormalities observed in all locations were present in 52% of patients.
CONCLUSIONS: The clinical signs of nail psoriasis are diverse, and for the majority, they are nonspecific. Nail dermoscopy is a noninvasive tool that enhances the visualization of the nail manifestations of psoriasis. It may facilitate the establishment of diagnostic criteria for this pathology without resorting to more invasive procedures, such as nail biopsy.
OBJECTIVE: This systematic review aimed to summarize the existing studies published in the literature that reported the various dermoscopic features of nail psoriasis.
METHODS: A systematic search of two medical databases, PubMed and Scopus, was conducted in April 2023. In total, 11 records were included. The number of reported cases in the included studies was 723.
RESULTS: The average age was 42.39 years. Sixty percent of patients were males, and 40% were females. Pitting constituted the most common onychoscopic feature indicating nail matrix involvement, followed by various other features such as leukonychia, nail plate thickening, transverse and longitudinal ridges, and different lunula abnormalities. The predominant onychoscopic feature indicating nail bed involvement was onycholysis, followed by splinter hemorrhages, oil drop sign, subungual hyperkeratosis, dilated capillaries, agminated capillary dots, erythematous border, and pustules. Vascular abnormalities observed in all locations were present in 52% of patients.
CONCLUSIONS: The clinical signs of nail psoriasis are diverse, and for the majority, they are nonspecific. Nail dermoscopy is a noninvasive tool that enhances the visualization of the nail manifestations of psoriasis. It may facilitate the establishment of diagnostic criteria for this pathology without resorting to more invasive procedures, such as nail biopsy.
摘要：
背景：指甲型银屑病常见于寻常型银屑病，甚至在银屑病关节炎中更为普遍。指甲的皮肤镜检查被证明有助于增强银屑病指甲病变的可视化。
目的：本系统综述旨在总结现有文献中报道的指甲银屑病的各种皮肤镜特征的研究。
方法：对两个医学数据库的系统搜索，PubMed和Scopus,于2023年4月进行。总的来说,包括11条记录。纳入研究的报告病例数为723例。
结果：平均年龄为42.39岁。60%的病人是男性,40%是女性。点蚀构成了最常见的指甲镜特征，表明指甲基质受累，其次是各种其他特征，如白质，指甲板增厚,横向和纵向脊，和不同的肺异常。表明甲床受累的主要甲镜特征是甲窦溶解，接着是碎片出血，油滴标志,甲下角化过度,扩张的毛细血管,聚集的毛细管点，红斑边界，还有脓疱.在所有位置观察到的血管异常在52%的患者中存在。
结论：指甲牛皮癣的临床症状多种多样，对于大多数人来说，它们是非特异性的。指甲皮肤镜检查是一种非侵入性工具，可增强牛皮癣指甲表现的可视化。它可能有助于建立这种病理的诊断标准，而无需诉诸更具侵入性的程序，比如指甲活检。
目的：本系统综述旨在总结现有文献中报道的指甲银屑病的各种皮肤镜特征的研究。
方法：对两个医学数据库的系统搜索，PubMed和Scopus,于2023年4月进行。总的来说,包括11条记录。纳入研究的报告病例数为723例。
结果：平均年龄为42.39岁。60%的病人是男性,40%是女性。点蚀构成了最常见的指甲镜特征，表明指甲基质受累，其次是各种其他特征，如白质，指甲板增厚,横向和纵向脊，和不同的肺异常。表明甲床受累的主要甲镜特征是甲窦溶解，接着是碎片出血，油滴标志,甲下角化过度,扩张的毛细血管,聚集的毛细管点，红斑边界，还有脓疱.在所有位置观察到的血管异常在52%的患者中存在。
结论：指甲牛皮癣的临床症状多种多样，对于大多数人来说，它们是非特异性的。指甲皮肤镜检查是一种非侵入性工具，可增强牛皮癣指甲表现的可视化。它可能有助于建立这种病理的诊断标准，而无需诉诸更具侵入性的程序，比如指甲活检。
