Nail dermoscopy is a helpful tool in the diagnosis of onychomycosis: A case control study

El-Hoshy, Khaled; Hay, Rania Abdel; El-Sherif, Rasha H.; Eldin, Mona Salah; Moussa, Marwa F.

doi:10.1684/ejd.2015.2637

Cited by 26 publications

(30 citation statements)

References 5 publications

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“…Comparing to previous studies, our findings were concordant, demonstrating two patterns systematically associated with OM: IMa and DP patterns . Their presence increased the likelihood for OM diagnosis, by about 43‐fold and 33‐fold, respectively (Table ).…”

Section: Discussion/conclusionsupporting

confidence: 82%

“…Comparing to previous studies, 1,[15][16][17][18][19] our findings were concordant, demonstrating two patterns systematically associated with OM: IMa and DP patterns. 1,[15][16][17][18] Their presence increased the likelihood for OM diagnosis, by about 43-fold and 33-fold, respectively ( Table 5). Although the specificity of both patterns for OM diagnosis was high (>96%), we did not find a 100% specificity as previously reported, 1,16 perhaps because we included a larger sample and we did not restrict our inclusion criteria to a specific subtype of OM (distal subungual onychomycosis).…”

Section: Discussion/conclusionsupporting

confidence: 79%

“…Their presence increased the likelihood for OM diagnosis, by about 43‐fold and 33‐fold, respectively (Table ). Although the specificity of both patterns for OM diagnosis was high (>96%), we did not find a 100% specificity as previously reported, perhaps because we included a larger sample and we did not restrict our inclusion criteria to a specific subtype of OM (distal subungual onychomycosis). The IMa (‘jagged edged with spikes’) pattern results from distal‐to‐proximal invasion of dermatophytes .…”

Section: Discussion/conclusioncontrasting

confidence: 57%

“…Three major onychoscopic features associated with OM have been described: longitudinal striae, 'jagged edge' with spikes and 'ruin appearance'. 1,[15][16][17][18][19] Former studies were mostly retrospective, had a small number of cases and lacked a control group.…”

Section: Introductionmentioning

confidence: 99%

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A comparative study of onychomycosis and traumatic toenail onychodystrophy dermoscopic patterns

Pinheiro

Domingues²,

Sousa

et al. 2019

Acad Dermatol Venereol

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Background Onychomycosis (OM) and traumatic onychodystrophy (OD) are common causes of toenail changes.A clinical diagnosis is often impossible without mycology. Dermoscopy is helpful in this setting but yet underexplored. Prospective comparative studies between OM and OD onychoscopic findings have not been previously performed.Objectives We sought to determine distinguishing dermoscopic presentations of OM and traumatic OD. MethodsWe performed a prospective, observational study including patients presenting with ≥1 toenail onychodystrophy. All underwent onychoscopy, clinical and mycological examination. Based on these results, patients received a final diagnosis of OM or OD. Dermoscopic presentations of OM and OD patients were classified in patterns and compared.Results In all, 110 cases of OM and 82 of traumatic OD were compared. Statistical analyses revealed that the distal pulverized and the irregular spiked macular dermoscopic patterns were predictors of an OM diagnosis. The regular macular, the non-classifiable, the total and partial homogeneous background dermoscopic patterns correlated with traumatic OD diagnosis. ConclusionsWe demonstrated that OM and traumatic OD have distinctive onychoscopic presentations. Dermoscopy may be an important ancillary tool to guide their differential.

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Section: Discussion/conclusionsupporting

confidence: 82%

Section: Discussion/conclusionsupporting

confidence: 79%

Section: Discussion/conclusioncontrasting

confidence: 57%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A comparative study of onychomycosis and traumatic toenail onychodystrophy dermoscopic patterns

Pinheiro

Domingues²,

Sousa

et al. 2019

Acad Dermatol Venereol

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“…In a case control study, spikes, longitudinal striations, and color changes were statistically significantly higher in patients than in controls. They found that the sensitivity of spikes in OM was 100% and that of longitudinal striations was 82.5%, and color changes were not only seen in OM but also seen in healthy controls (14). This was consistent with what Piraccini et al stated (10).…”

Section: Discussionsupporting

confidence: 73%

Nail Digital Dermoscopy in Onychomycosis: Correlation With Clinical Type, Gender And Culture Examination

İslamoğlu¹

2019

Erciyes Med J

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Objective: Onychomycosis (OM) is a common disease that covers both tinea unguium and those remaining cases caused by yeasts, mainly of the Candida and various non-dermatophyte molds. Diagnosis is usually confirmed with direct microscopy and fungal culture. Nail dermoscopy is a non-invasive tool to diagnose various nail disorders and also to avoid time-consuming investigations. The aim of the present study was to determine the dermoscoping findings in OM and to correlate this with clinical type, gender, and culture results. Materials and Methods: This was a cross-sectional study of 100 patients diagnosed with OM according to clinical findings and direct microscopic examination. Nail dermoscopy was performed using a FotoFinder Digital Dermoscope, and images were recorded. A part of the samples was cultured in all patients. Results: The most frequent clinical type was distal lateral subungual onychomycosis (80.0%). The culture was negative in 72.0% of the samples. In the positive group, 48% of Trichophyton rubrum was cultured. The most common dermoscopic findings were longitudinal stria, ruin appearance, and longitudinal leukonychia. In culture-negative samples, irregular termination was most commonly seen. Ruin appearance, brown discoloration, hematoma, and transverse leukonychia, such as brushing, were compatible with total dystrophic OM. Conclusion: Determinative dermoscopic findings for OM, clinical types, and fungus forms were identified. These signs can avoid unnecessary mycology in selected cases.

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Dermoscopy in the Diagnosis of Onychomycosis

et al. 2018

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Nail dermoscopy is a helpful tool in the diagnosis of onychomycosis: A case control study

Cited by 26 publications

References 5 publications

A comparative study of onychomycosis and traumatic toenail onychodystrophy dermoscopic patterns

A comparative study of onychomycosis and traumatic toenail onychodystrophy dermoscopic patterns

Nail Digital Dermoscopy in Onychomycosis: Correlation With Clinical Type, Gender And Culture Examination

Dermoscopy in the Diagnosis of Onychomycosis

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