ArticleDermatology practical & conceptual2025
Clinical and Onychoscopy Patterns In Fingernail Onychomycosis - A Study By The International Dermoscopy Society "Trichoscopy and Onychoscopy" Task Force.
Article in Dermatology practical & conceptual, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed.
- Dermoscopic Features of Onychomycosis Identified by Image Analysis Using a Decision Tree Algorithm.Dermatology practical & conceptual · 2026Article
- Fingernail Onychomycosis: A Laboratory-Based Retrospective Study with Species Profiling and Antifungal Susceptibility of Yeasts.Journal of clinical medicine · 2026Article
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16 authors.
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Abstract
introductionOnychomycosis is one of the most common nail diseases. Fingernail onychomycosis is significantly less frequent than toenail onychomycosis and it is often misdiagnosed due to its subtle clinical presentations.
objectivesWe sought to analyze the clinical and onychoscopic features of culture-proven cases of fingernail onychomycosis in adult and pediatric patients.
methodsMedical records of 120 patients with onychomycosis limited to the fingernails were collected and analyzed across several dermatological centers (Italy, Switzerland, Spain, Greece, Brazil, India, Morocco, Tunisia). Data collected included age, sex, affected hand, affected fingernails, isolated fungal microorganism, clinical, and onychoscopic signs.
resultsA total of 341 fingernails were analyzed. The most commonly affected hand was the right one, and the most frequently affected digits were the second and third. The mean number of affected digits per patient was 2.84. Cultures identified Trichophyton rubrum in 54 cases, T. mentagrophytes var. interdigitalis in 20 cases, Aspergillus spp. in 8 cases, Candida spp. in 31 cases, and various other fungi in the remaining cases. Major clinical and onychoscopic features observed included onycholysis, subungual hyperkeratosis, leukonychia, chromonychia and absence of the cuticles. On the basis of all findings, 4 main types of fingernail onychomycosis were identified.
conclusionsFingernail onychomycosis presents with distinct clinical and onychoscopy characteristics that can overlap with other nail conditions. Dermoscopy enhances diagnostic accuracy, but mycological confirmation is mandatory for a definitive diagnosis.
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