Tinea versicolor: Difference between revisions
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Neil.m.young (talk | contribs) No edit summary |
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*Caused by fungus Pityrosporum ovale (oval form) or obiculare | *Caused by fungus Pityrosporum ovale (oval form) or obiculare | ||
*Also known as Malassezia furfur | *Also known as Malassezia furfur | ||
==Clinical Features== | |||
*Hypopigmented or hyperpigmented lesions predominantly on the trunk | |||
*More common in areas of increased sebaceous glands | |||
*Equally common is light and dark skinned individuals, but more noticeable in the later | |||
==Differential Diagnosis== | ==Differential Diagnosis== | ||
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*Vitiligo | *Vitiligo | ||
== | ==Diagnosis== | ||
*Some demonstrate coppery-orange fluoresence under Woods Lamp | *Some demonstrate coppery-orange fluoresence under Woods Lamp | ||
*KOH wet prep (Spaghetti and Meatballs appearance) | *KOH wet prep (Spaghetti and Meatballs appearance) | ||
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*Griseofulvin is not effective | *Griseofulvin is not effective | ||
== See Also == | ==See Also== | ||
* | *[[Tinea]] | ||
== References == | ==References== | ||
*http://emedicine.medscape.com/article/1091575 | *http://emedicine.medscape.com/article/1091575 | ||
[[Category:Derm]] | [[Category:Derm]] | ||
Revision as of 13:22, 9 June 2015
Background
- Caused by fungus Pityrosporum ovale (oval form) or obiculare
- Also known as Malassezia furfur
Clinical Features
- Hypopigmented or hyperpigmented lesions predominantly on the trunk
- More common in areas of increased sebaceous glands
- Equally common is light and dark skinned individuals, but more noticeable in the later
Differential Diagnosis
- Pityriasis Alba
- Guttate Psoriasis
- Seborrheic Dermatitis
- Tinea Corporis
- Vitiligo
Diagnosis
- Some demonstrate coppery-orange fluoresence under Woods Lamp
- KOH wet prep (Spaghetti and Meatballs appearance)
- Almost never cultured given difficult culture medium, benign course, and diagnostic KOH prep.
Management
- First line topical treatment is ketoconazole (nightly application x 2 weeks) or selenium sulfide (10 minutes x bid)
- Single dose 400mg ketoconazole PO or fluconazole 150-300mg PO per week x 2-4 weeks for more resistant cases or for easy-of-use
- Griseofulvin is not effective