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. 2023 Oct;188(5):461-478.
doi: 10.1007/s11046-022-00703-z. Epub 2022 Dec 30.

Tinea Capitis in Children Younger than Two Years Old: A Retrospective Study and Treatment Recommendations

Ge Song  1   2   3 , Meijie Zhang  1   2   3 , Xue Kong  1   2   3 , Weida Liu  4   5   6   7 , Guanzhao Liang  8   9   10
Affiliations

Tinea Capitis in Children Younger than Two Years Old: A Retrospective Study and Treatment Recommendations

Ge Song et al. Mycopathologia. 2023 Oct.

Abstract

Background: Tinea capitis (TC) is a dermatophytosis of the scalp and hair, which occurs less common in children younger than two years of age, and the data of TC in this age group are still unknown.

Objectives: We aimed to reveal the epidemiological, clinical and mycological characteristics of TC in children under two years old.

Methods: We retrospectively analyzed all reported cases of TC in children in their first two years of life from 1991 to 2022, by searching PubMed, Embase, Web of Science, CNKI, Wanfang and Weipu databases.

Results: A total of 47 articles involving 126 cases of pediatric TC were enrolled in this study. The sex ratio (M/F) was 1.28:1. The age of the children ranged from ten days old to two years old with a median age of three months. The main clinical manifestations were alopecic patches (40 cases, 31.7%) and scaling (39 cases, 31.0%) on the scalp, and 29 infants (23.0%) appeared kerion. The most common sources of contagion were animals (35 cases, 27.78%) and humans (31 cases, 24.60%). The leading pathogens were Microsporidium canis (64 cases, 50.79%), followed by Trichophyton violaceum (13 cases, 10.32%), T. mentagrophytes complex (12 cases, 9.52%) and T. tonsurans (10 cases, 7.94%). Ninety-five children (75.40%) were treated with systemic antifungal drugs and 22 patients (17.46%) were only treated with topical therapy. Except for 10 patients with unknown final prognosis, all the other cases were cured after treatment. There was one child (0.79%) relapsed after treatment with griseofulvin and one case (0.79%) presented with gastrointestinal symptoms from griseofulvin.

Conclusion: The principal clinical symptoms of TC in children less than two years old were alopecic patches and scaling. The top four pathogens were M. canis, T. violaceum, T. mentagrophytes complex and T. tonsurans. Oral treatment for pediatric TC had achieved good therapeutic effects, and topical therapy can be an alternative choice.

Keywords: Children younger than two years old; Dermatophyte; Dermatophytosis; Tinea capitis.

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