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Tinea capitis

L Y Matsuoka, P Gedz

American Family Physician

|January 1, 1982

Summary

This summary is machine-generated.

Trichophyton tonsurans is a leading cause of tinea capitis in children and adults, presenting as scaling patches with black dots. Microsporum species, previously dominant, cause Wood's light positive infections, with all three responding to griseofulvin.

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Area of Science:

Dermatology
Mycology
Infectious Diseases

Background:

Trichophyton tonsurans is an emerging cause of tinea capitis.
Microsporum canis and Microsporum audouini were previously the most common causes.
Tinea capitis affects both pediatric and adult populations.

Purpose of the Study:

To differentiate the clinical presentation and diagnostic features of common tinea capitis fungal species.
To compare the epidemiological trends of T. tonsurans versus Microsporum species.
To confirm the therapeutic response to griseofulvin across different causative agents.

Main Methods:

Clinical observation of lesion characteristics.
Wood's light examination for fluorescence.
Microscopic identification of fungal elements.

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Assessment of treatment efficacy with griseofulvin.

Main Results:

T. tonsurans causes pruritic, scaling patches with black dots, negative under Wood's light.
M. canis infections are inflammatory and Wood's light positive.
M. audouini infections are scaly and Wood's light positive.
All three fungal species demonstrated susceptibility to griseofulvin.

Conclusions:

T. tonsurans is a significant pathogen in current tinea capitis cases.
Distinct clinical and diagnostic features aid in differentiating causative agents.
Griseofulvin remains an effective treatment for common tinea capitis fungal infections.