Tinea versicolor

Definition

Tinea versicolor is a superficial fungal infection caused by the yeast Malassezia. It leads to discolored patches on the skin, often exacerbated by sun exposure.

5 Must Know Facts For Your Next Test

1. Tinea versicolor is treated with topical antifungal agents such as clotrimazole or miconazole.
2. The causative agent, Malassezia, is part of the normal skin flora but can become pathogenic under certain conditions.
3. Oral antifungals like fluconazole may be prescribed for extensive or refractory cases.
4. Hypopigmented or hyperpigmented patches are common symptoms due to the yeast's interference with melanin production.
5. Diagnosis can be confirmed using a KOH (potassium hydroxide) preparation, which reveals hyphae and yeast cells.

Review Questions

Related terms

Malassezia:

A genus of fungi that includes species causing skin conditions like tinea versicolor.

Clotrimazole:

An antifungal medication used topically to treat infections caused by fungi.

Fluconazole:

An oral antifungal drug used for systemic treatment of various fungal infections.