Tinea capitis caused by Trichophyton tonsurans presenting as an obscure patchy hair loss due to daily antifungal shampoo use
| Autor: | Papapit Tuchinda, Theetat M. Surawan, Penvadee Pattanaprichakul, Sumanas Bunyaratavej, Alita Sombatmaithai, Lalita Matthapan, Chanai Muanprasart |
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| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
medicine.medical_specialty
Observation patchy hair loss Dermatology Asymptomatic Genetics medicine Trichophyton tonsurans Molecular Biology biology business.industry tinea capitis medicine.disease biology.organism_classification alopecia Shampoo medicine.anatomical_structure Oncology Scalp RL1-803 Endothrix Tinea capitis Histopathology Ketoconazole medicine.symptom business medicine.drug |
| Zdroj: | Dermatology Practical & Conceptual (2015) Dermatology Practical & Conceptual |
| Popis: | Tinea capitis is unusual and often misdiagnosed in healthy adults. We report a case of a healthy woman with a several-year history of asymptomatic, bizarre-shaped, non-scarring alopecia. She had used over-the-counter ketoconazole shampoo regularly for a long time. An initial potassium hydroxide preparation showed negative result for fungal organism. The scalp biopsy revealed endothrix infection, and dermoscopic examination demonstrated the comma hair and corkscrew hair signs. The fungal culture showed Trichophyton tonsurans. The daily use of antifungal shampoo could be the important factor to conceal clinical and laboratory findings for diagnosis of T. tonsurans tinea capitis in our case, which required high clinical suspicion and histopathology and dermoscopic examinations. |
| Databáze: | OpenAIRE |
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