Dermoscopy – a simple and rapid in vivo diagnostic technique for tinea incognito

Sonthalia, Sidharth; Ankad, Balachandra S; Goldust, Mohamad; Jha, Abhijeet Kumar

doi:10.1016/j.abd.2019.09.017

Cited by 12 publications

(14 citation statements)

References 5 publications

(11 reference statements)

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“…Recently, dermoscopy was used for tinea incognita resulting from corticosteroid abuse. 12 Morse-code hairs, deformable and 1c translucent, comma and cork screw hairs, and perifollicular scaling were significant findings 13 in this Indian and Iranian study. The problem remains, however, the impossible species identification which is necessary in chronic recalcitrant dermatophytosis.…”

Section: Nonmycological Tests For Dermatophytosesmentioning

confidence: 55%

The unprecedented epidemic-like scenario of dermatophytosis in India: II. Diagnostic methods and taxonomical aspects

Verma¹,

Panda²,

Nenoff³

et al. 2021

IJDVL

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Trichophyton (T.)mentagrophytes now accounts for an overwhelming majority of clinical cases in India, a new “Indian genotype” (T. mentagrophytes ITS genotype VIII) having been isolated from skin samples obtained from cases across a wide geographical distribution in this country. The conventional diagnostic methods, like fungal culture, are, however, inadequate for diagnosing this agent. Thus, molecular methods of diagnosis are necessary for proper characterization of the causative agent. The shift in the predominant agent of dermatophytosis from T. rubrum to T. mentagrophytes, within a relatively short span of time, is without historic parallel. The apparent ease of transmission of a zoophilic fungus among human hosts can also be explained by means of mycological phenomena, like anthropization.

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Section: Nonmycological Tests For Dermatophytosesmentioning

confidence: 55%

The unprecedented epidemic-like scenario of dermatophytosis in India: II. Diagnostic methods and taxonomical aspects

Verma¹,

Panda²,

Nenoff³

et al. 2021

IJDVL

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“… 80 , 81 These changes may be seen despite the use of topical corticosteroids or calcineurin inhibitors. 82 Reflectance confocal microscopy is another useful diagnostic tool. 2 , 83 With reflectance confocal microscopy, branching fungal hyphae can be detected over an erythematous annular scaly patch in individuals with tinea corporis.…”

Section: Diagnosismentioning

confidence: 99%

Tinea corporis: an updated review

Leung¹,

Lam²,

Leong³

et al. 2020

DIC

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Background Tinea corporis is a common fungal infection that mimics many other annular lesions. Physicians must familiarize themselves with this condition and its treatment. Objective This article aimed to provide a narrative updated review on the evaluation, diagnosis, and treatment of tinea corporis. Methods A PubMed search was performed with Clinical Queries using the key term ‘tinea corporis.’ The search strategy included clinical trials, meta-analyses, randomized controlled trials, observational studies, and reviews. The search was restricted to the English language. The information retrieved from the mentioned search was used in the compilation of the present article. Results Tinea corporis typically presents as a well-demarcated, sharply circumscribed, oval or circular, mildly erythematous, scaly patch or plaque with a raised leading edge. Mild pruritus is common. The diagnosis is often clinical but can be difficult with prior use of medications, such as calcineurin inhibitors or corticosteroids. Dermoscopy is a useful and non-invasive diagnostic tool. If necessary, the diagnosis can be confirmed by microscopic examination of potassium hydroxide wet-mount preparations of skin scrapings from the active border of the lesion. Fungal culture is the gold standard to diagnose dermatophytosis especially if the diagnosis is in doubt and results of other tests are inconclusive or the infection is widespread, severe, or resistant to treatment. The standard treatment of tinea corporis is with topical antifungals. Systemic antifungal treatment is indicated if the lesion is multiple, extensive, deep, recurrent, chronic, or unresponsive to topical antifungal treatment, or if the patient is immunodeficient. Conclusion The diagnosis of tinea corporis is usually clinical and should pose no problem to the physician provided the lesion is typical. However, many clinical variants of tinea corporis exist, rendering the diagnosis difficult especially with prior use of medications, such as calcineurin inhibitors or corticosteroids. As such, physicians must be familiar with this condition so that an accurate diagnosis can be made and appropriate treatment initiated.

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“…In cases affecting non‐glabrous skin, comma, corkscrew, and Morse code‐like hairs can be observed. 12 , 15 , 16 In addition, concentric erythematous areas separated by scales, follicular micropustules, and black spots surrounded by a white‐yellowish halo can be detected. 12 , 17 Scaly, broken, translucent, and deformable hairs have also been reported.…”

Section: Tinea Incognitomentioning

confidence: 99%

“… 12 , 17 Scaly, broken, translucent, and deformable hairs have also been reported. 12 , 15 , 16 Such dermoscopic features in a patient presenting with long‐standing dermatitis and history of steroid or calcineurin inhibitor use should raise suspicion of tinea incognito.…”

Section: Tinea Incognitomentioning

confidence: 99%

“…Dermoscopy has recently been integrated into the clinical examination of tinea incognito. In cases affecting non‐glabrous skin, comma, corkscrew, and Morse code‐like hairs can be observed 12,15,16 . In addition, concentric erythematous areas separated by scales, follicular micropustules, and black spots surrounded by a white‐yellowish halo can be detected 12,17 .…”

Section: Tinea Incognitomentioning

confidence: 99%

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Dermoscopy for cutaneous fungal infections: A brief review

Lim

Shin

Mun

2022

Health Science Reports

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Background Fungal dermatological diseases are significant public health issues. Dermoscopy is a useful bedside assessment tool that helps clinicians diagnose various skin neoplasms and general dermatological diseases. Aim This brief review aims to update clinicians on the dermoscopic features of cutaneous fungal infections such as tinea capitis, tinea corporis, tinea incognito, onychomycosis, and pityrosporum folliculitis. Methods The PubMed database was searched using the terms “dermoscopy” or its synonyms, “tinea capitis”, “tinea corporis”, “tinea incognito”, “onychomycosis” and “pityrosporum folliculitis”. Results The diagnostic value of dermoscopy is well‐recognised in the evaluation of tinea capitis and onychomycosis. There are fewer studies investigating the dermoscopic features of tinea corporis, tinea incognito and pityrosporum folliculitis, but the current data suggest that dermoscopy can aid clinical evaluation of these diseases. Understanding dermoscopic features of cutaneous fungal infection has the potential to increase diagnostic accuracy. Conclusion Dermoscopy in the evaluation of fungal dermatological diseases has the potential to optimize diagnostic accuracy, reduce unnecessary testing, and, consequently, improve clinical practice.

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Dermoscopy – a simple and rapid in vivo diagnostic technique for tinea incognito

Cited by 12 publications

References 5 publications

The unprecedented epidemic-like scenario of dermatophytosis in India: II. Diagnostic methods and taxonomical aspects

The unprecedented epidemic-like scenario of dermatophytosis in India: II. Diagnostic methods and taxonomical aspects

Tinea corporis: an updated review

Dermoscopy for cutaneous fungal infections: A brief review

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