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The First Report of Onychomycosis Caused by Elsinoë Speciesopen accessElsinoë 속 진균에 의한 조갑진균증 1예

Authors
Choe, Kye WonChoi, YoojeongLim, Yong KwanKweon, Oh JooHan, Hye SungPark, Kui YoungSeo, Seong JunLee, Mi-Kyung
Issue Date
Jan-2024
Publisher
대한진단검사의학회
Keywords
Onychomycosis;  Elsinoë species; Fungus; Sequencing
Citation
Laboratory Medicine Online, v.14, no.1, pp 56 - 59
Pages
4
Journal Title
Laboratory Medicine Online
Volume
14
Number
1
Start Page
56
End Page
59
URI
https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/71003
DOI
10.47429/lmo.2024.14.1.56
ISSN
2093-6338
2093-6338
Abstract
Onychomycosis has been reported to be caused mainly by dermatophytes, yeast, and non-dermatophyte molds. Here, we report the first case of onychomycosis caused by Elsinoë species, which has been known as a phytopathogen that causes diseases in many plant hosts. The mold was isolated from the right great toenail of a 63-year-old woman with no history of underlying diseases. Cultured colony morphology showed slow-growing, erumpent, cerebriform, brownish to black-colored colonies, characteristic of Elsinoë species. Internal transcribed spacer (ITS) and large subunit (LSU) region sequence analyses were used for identification, and the results showed consistently high identity scores (>90%) for Elsinoë species. This is the first clinical case of Elsinoë species infecting a non-plant organism, particularly a human, as a host.
조갑진균증은 주로 피부사상균, 효모 및 기타 비피부사상균 등에 의해 발생하는 것으로 알려져 있다. 본 증례 보고는 기존에 식물 병원체로 알려진 Elsinoë 속의 진균이 처음으로 조갑진균증의 원인균으로서 발견된 첫 사례이다. 기저질환의 병력이 없는 63세 여성의 우측 엄지발톱에서 해당 진균이 분리되었으며, Elsinoë 속의 배양 시 특징적으로 나타나는 느린 성장 속도와 돌출된 대뇌양의 갈색에서 검은색의 집락을 보였다. 분자적 동정을 위해 ITS (internal transcribed spacer) 및 LSU (large subunit) 영역의 염기서열을 분석하여 Elsinoë 속에 국한되어 높은 동일성 점수(>90%)를 갖는 결과를 얻었다. 본 증례는 Elsinoë 속의 진균이 동물 숙주에 감염된 최초의 임상 사례로 사료된다.
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