CASE REPORT: FIRST CASE OF TINEA CORPORIS CAUSED BY TRICHOPHYTON INDOTINEAE IN NORTHERN VIETNAM

Nguyen Minh Quyen, Nguyễn Thị Như Quỳnh, Đỗ Ngọc Hoàng, Lê Quốc Tuấn, Lê Trần Anh, Thị Thanh Bình Nguyễn, Đỗ Ngọc Ánh

Main Article Content

Abstract

Dermatophytosis is one of the most commonly seen skin diseases caused by fungi which belong to three genus: Trichophyton, Epidermophyton, and Microsporum. Trichophyton indotineae is a newly identified dermatophyte species with significant resistance to terbinafine, and it has been reported in various countries across Asia, Europe, and North America. In this article, we report the first case of Tinea corporis in Northern Vietnam caused by T. indotineae in a 39-year-old female who had gone for a medical examination at Military Hospital 103. The patient exhibited characteristic lesions, and both microscopic examination and culture technique showed the result that dermatophyte was the causative agent. The isolated fungal strain was identified as T. indotineae through DNA sequencing based on the ITS1-5.8S-ITS2 target. The patient was successfully treated with a combination of oral itraconazole and topical ketoconazole. This case highlights the importance of combining clinical observations with morphological examinations for the diagnosis of fungal skin infections. Additionally, the application of molecular tools for precise identification of the causative agent is crucial for selecting appropriate treatment and supplementing epidemiological information on newly identified dermatophytes species in Vietnam.

Article Details

References

1. Havlickova B, Czaika VA, Friedrich M. Epidemiological trends in skin mycoses worldwide. Mycoses. 2008; 51(s4):2-15.
2. Võ Thị Thanh Hiền, Nguyễn Thị Huyền Sương, Vũ Văn Thái, Đinh Thị Thanh Mai, Trịnh Văn Khương, Đỗ Thị Huỳnh. Thực trạng bệnh nấm da của bệnh nhân đến khám tại Bệnh viện da liễu tỉnh Thái Bình. Công trình nghiên cứu khoa học trường Đại học Y Dược Hải Phòng. 2022:304-311.
3. Frías-De-León MG, Martínez-Herrera E, Atoche-Diéguez CE, et al. Molecular identification of isolates of the Trichophyton mentagrophytes complex. International Journal of Medical Sciences. 2020; 17(1):45-52.
4. Kumar P, Ramachandran S, Das S, Bhattacharya SN, Taneja B. Insights into changing dermatophyte spectrum in India through analysis of cumulative 161,245 cases between 1939 and 2021. Mycopathologia. 2023; 188(3):183-202.
5. Nenoff P, Uhrlaß S, Verma SB, Panda S. Trichophyton mentagrophytes ITS genotype VIII and Trichophyton indotineae: A terminological maze, or is it? Indian Journal of Dermatology, Venereology and Leprology. 2022; 88:586-589.
6. Ngô Thị Minh Châu, Tôn Nữ Phương Anh, Lê Chí Cao, Hà Thị Ngọc Thúy, Đỗ Thị Bích Thảo, Trần Thị Giang. First detection of Trichophyton indotineae causing tinea corporis in Central Vietnam. Medical mycology case reports. 2022; 36:37-41.
7. Ebert A, Monod M, Salamin K, et al. Alarming India-wide phenomenon of antifungal resistance in dermatophytes: A multicentre study. Mycoses. 2020; 63(7):717-728.
8. Verma SB, Panda S, Nenoff P, et al. The unprecedented epidemic-like scenario of dermatophytosis in India: I. Epidemiology, risk factors and clinical features. Indian Journal of Dermatology, Venereology and Leprology. 2021; 87(2):154-175.
9. Tang C, Ahmed SA, Deng S, et al. Detection of emerging genotypes in Trichophyton mentagrophytes species complex: A proposal for handling biodiversity in dermatophytes. Frontiers in Microbiology. 2022;13.
10. Kano R, Kimura U, Kakurai M, et al. Trichophyton indotineae sp. nov.: A new highly terbinafine-resistant anthropophilic dermatophyte species. Mycopathologia. 2020; 185(6):947-958.