Tinea versicolor: Difference between revisions

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	Tinea versicolor;
ICD-10	B36.0
ICD-9	111.0
DiseasesDB	10071
MedlinePlus	001465
eMedicine	derm/423

VisualWikitext

Revision as of 17:24, 25 September 2014

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Kiran Singh, M.D. [2]

Overview

Tinea versicolor or pityriasis versicolor is a common skin infection caused by the yeast Malassezia furfur (formerly termed Pityrosporum ovale). This yeast is normally found on the human skin and only becomes troublesome under certain circumstances, such as a warm and humid environment.

Symptoms

The symptoms of this condition include:

Generally oval or irregularly-shaped spots of 1/4 to 1 inch in diameter, often merging together to form a larger patch
Occasional fine scaling of the skin producing a very superficial ash-like scale
Pale, dark tan, or pink in color, with a reddish undertone that can darken when the patient is overheated, such as in a hot shower or during/after exercise
Sharp border

These spots commonly affect the back, underarm, upper arm, chest, lower legs, and neck. Occasionally it can also be present on the face. The yeasts can often be seen under the microscope within the lesions and typically have a so called "spaghetti and meat ball appearance" as the round yeasts produce filaments.

In people with dark skin tones, pigmentary changes such as hypopigmentation (loss of color) are common, while in those with lighter skin color, hyperpigmentation (increase in skin color) are more common. These discolorations have led to the term "sun fungus".

Diagnosis

Physical Examination

Skin

Trunk

Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]

Extremities

Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]
Pityriasis versicolor. Adapted from Dermatology Atlas.^[1]

Prevalence

Tinea versicolor is a common condition. It is estimated that 2 to 8% of the population of the United States has it. This skin disease commonly affects adolescents and young adults, especially in warm and humid climates. It is thought that the yeast feeds on skin oils (lipids) as well as dead skin cells.

Treatment

Treatments for tinea versicolor include:

Topical antifungal medications - containing either 2.5% selenium sulfide (Selsun® shampoo in UK, but not Selsun Blue which contains only 1%) or 2% ketoconazole (Nizoral® ointment and shampoo) applied to dry skin and washed off after 10 minutes, repeated daily for 2 weeks. Other topical antifungal agents such as clotrimazole, miconazole or terbinafine are less widely recommended. Additionally, hydrogen peroxide has been known to lessen symptoms, and on certain occasions, remove the problem.
Oral antifungal prescription only medications include 400 mg of ketoconazole or fluconazole in a single dose, or ketoconazole 200 mg daily for 7 days, or itraconazole 400 mg daily for 3-7 days. The single-dose regimens can be made more effective by having the patient exercise 1-2 hours after the dose, to induce sweating. The sweat is allowed to evaporate, and showering is delayed for a day, leaving a film of the medication on the skin.
Recurrence is common and may be reduced by intermittent application of topical agents (such as tea tree oil) or adding a small amount of anti-dandruff shampoo to water used for bathing.

External links

Template:Mycoses

de:Pityriasis versicolor nl:Pityriasis versicolor sv:Pityriasis versicolor sr:Tinea_versicolor

Template:WH Template:WikiDoc Sources

↑ ^1.00 ^1.01 ^1.02 ^1.03 ^1.04 ^1.05 ^1.06 ^1.07 ^1.08 ^1.09 ^1.10 ^1.11 ^1.12 ^1.13 ^1.14 ^1.15 ^1.16 ^1.17 ^1.18 ^1.19 ^1.20 ^1.21 ^1.22 ^1.23 ^1.24 ^1.25 ^1.26 ^1.27 ^1.28 ^1.29 ^1.30 ^1.31 ^1.32 ^1.33 ^1.34 ^1.35 ^1.36 ^1.37 ^1.38 ^1.39 ^1.40 ^1.41 ^1.42 ^1.43 ^1.44 ^1.45 ^1.46 ^1.47 ^1.48 ^1.49 ^1.50 ^1.51 ^1.52 ^1.53 ^1.54 ^1.55 ^1.56 ^1.57 ^1.58 ^1.59 ^1.60 ^1.61 ^1.62 "Dermatology Atlas".

[Dermatology_Atlas-1] 1.00 ^1.01 ^1.02 ^1.03 ^1.04 ^1.05 ^1.06 ^1.07 ^1.08 ^1.09 ^1.10 ^1.11 ^1.12 ^1.13 ^1.14 ^1.15 ^1.16 ^1.17 ^1.18 ^1.19 ^1.20 ^1.21 ^1.22 ^1.23 ^1.24 ^1.25 ^1.26 ^1.27 ^1.28 ^1.29 ^1.30 ^1.31 ^1.32 ^1.33 ^1.34 ^1.35 ^1.36 ^1.37 ^1.38 ^1.39 ^1.40 ^1.41 ^1.42 ^1.43 ^1.44 ^1.45 ^1.46 ^1.47 ^1.48 ^1.49 ^1.50 ^1.51 ^1.52 ^1.53 ^1.54 ^1.55 ^1.56 ^1.57 ^1.58 ^1.59 ^1.60 ^1.61 ^1.62 "Dermatology Atlas".

[1]

@@ Line 34: / Line 34: @@
 ===Physical Examination===
 ====Skin====
+=====Trunk=====
 <gallery>
 Image:Pityriasis versicolor01.jpg|Pityriasis versicolor. <SMALL><SMALL>''[http://www.atlasdermatologico.com.br/  Adapted from Dermatology Atlas.]''<ref name="Dermatology Atlas">{{Cite web | title = Dermatology Atlas | url = http://www.atlasdermatologico.com.br/}}</ref></SMALL></SMALL>
@@ Line 39: / Line 40: @@
 Image:Pityriasis versicolor02.jpg|Pityriasis versicolor. <SMALL><SMALL>''[http://www.atlasdermatologico.com.br/  Adapted from Dermatology Atlas.]''<ref name="Dermatology Atlas">{{Cite web | title = Dermatology Atlas | url = http://www.atlasdermatologico.com.br/}}</ref></SMALL></SMALL>
-Image:Pityriasis versicolor03.jpg|Pityriasis versicolor. <SMALL><SMALL>''[http://www.atlasdermatologico.com.br/  Adapted from Dermatology Atlas.]''<ref name="Dermatology Atlas">{{Cite web | title = Dermatology Atlas | url = http://www.atlasdermatologico.com.br/}}</ref></SMALL></SMALL>
 Image:Pityriasis versicolor04.jpg|Pityriasis versicolor. <SMALL><SMALL>''[http://www.atlasdermatologico.com.br/  Adapted from Dermatology Atlas.]''<ref name="Dermatology Atlas">{{Cite web | title = Dermatology Atlas | url = http://www.atlasdermatologico.com.br/}}</ref></SMALL></SMALL>
-Image:Pityriasis versicolor05.jpg|Pityriasis versicolor. <SMALL><SMALL>''[http://www.atlasdermatologico.com.br/  Adapted from Dermatology Atlas.]''<ref name="Dermatology Atlas">{{Cite web | title = Dermatology Atlas | url = http://www.atlasdermatologico.com.br/}}</ref></SMALL></SMALL>
@@ Line 75: / Line 68: @@
 Image:Pityriasis versicolor09.jpg|Pityriasis versicolor. <SMALL><SMALL>''[http://www.atlasdermatologico.com.br/  Adapted from Dermatology Atlas.]''<ref name="Dermatology Atlas">{{Cite web | title = Dermatology Atlas | url = http://www.atlasdermatologico.com.br/}}</ref></SMALL></SMALL>
-Image:Pityriasis versicolor10.jpg|Pityriasis versicolor. <SMALL><SMALL>''[http://www.atlasdermatologico.com.br/  Adapted from Dermatology Atlas.]''<ref name="Dermatology Atlas">{{Cite web | title = Dermatology Atlas | url = http://www.atlasdermatologico.com.br/}}</ref></SMALL></SMALL>
@@ Line 120: / Line 108: @@
 Image:Pityriasis versicolor20.jpg|Pityriasis versicolor. <SMALL><SMALL>''[http://www.atlasdermatologico.com.br/  Adapted from Dermatology Atlas.]''<ref name="Dermatology Atlas">{{Cite web | title = Dermatology Atlas | url = http://www.atlasdermatologico.com.br/}}</ref></SMALL></SMALL>
-Image:Pityriasis versicolor21.jpg|Pityriasis versicolor. <SMALL><SMALL>''[http://www.atlasdermatologico.com.br/  Adapted from Dermatology Atlas.]''<ref name="Dermatology Atlas">{{Cite web | title = Dermatology Atlas | url = http://www.atlasdermatologico.com.br/}}</ref></SMALL></SMALL>
-Image:Pityriasis versicolor22.jpg|Pityriasis versicolor. <SMALL><SMALL>''[http://www.atlasdermatologico.com.br/  Adapted from Dermatology Atlas.]''<ref name="Dermatology Atlas">{{Cite web | title = Dermatology Atlas | url = http://www.atlasdermatologico.com.br/}}</ref></SMALL></SMALL>
@@ Line 163: / Line 143: @@
 Image:Pityriasis versicolor36.jpg|Pityriasis versicolor. <SMALL><SMALL>''[http://www.atlasdermatologico.com.br/  Adapted from Dermatology Atlas.]''<ref name="Dermatology Atlas">{{Cite web | title = Dermatology Atlas | url = http://www.atlasdermatologico.com.br/}}</ref></SMALL></SMALL>
-Image:Pityriasis versicolor37.jpg|Pityriasis versicolor. <SMALL><SMALL>''[http://www.atlasdermatologico.com.br/  Adapted from Dermatology Atlas.]''<ref name="Dermatology Atlas">{{Cite web | title = Dermatology Atlas | url = http://www.atlasdermatologico.com.br/}}</ref></SMALL></SMALL>
@@ Line 232: / Line 204: @@
 Image:Pityriasis versicolor49.jpg|Pityriasis versicolor. <SMALL><SMALL>''[http://www.atlasdermatologico.com.br/  Adapted from Dermatology Atlas.]''<ref name="Dermatology Atlas">{{Cite web | title = Dermatology Atlas | url = http://www.atlasdermatologico.com.br/}}</ref></SMALL></SMALL>
-Image:Pityriasis versicolor50.jpg|Pityriasis versicolor. <SMALL><SMALL>''[http://www.atlasdermatologico.com.br/  Adapted from Dermatology Atlas.]''<ref name="Dermatology Atlas">{{Cite web | title = Dermatology Atlas | url = http://www.atlasdermatologico.com.br/}}</ref></SMALL></SMALL>
-Image:Pityriasis versicolor51.jpg|Pityriasis versicolor. <SMALL><SMALL>''[http://www.atlasdermatologico.com.br/  Adapted from Dermatology Atlas.]''<ref name="Dermatology Atlas">{{Cite web | title = Dermatology Atlas | url = http://www.atlasdermatologico.com.br/}}</ref></SMALL></SMALL>
 Image:Pityriasis versicolor52.jpg|Pityriasis versicolor. <SMALL><SMALL>''[http://www.atlasdermatologico.com.br/  Adapted from Dermatology Atlas.]''<ref name="Dermatology Atlas">{{Cite web | title = Dermatology Atlas | url = http://www.atlasdermatologico.com.br/}}</ref></SMALL></SMALL>
 Image:Pityriasis versicolor53.jpg|Pityriasis versicolor. <SMALL><SMALL>''[http://www.atlasdermatologico.com.br/  Adapted from Dermatology Atlas.]''<ref name="Dermatology Atlas">{{Cite web | title = Dermatology Atlas | url = http://www.atlasdermatologico.com.br/}}</ref></SMALL></SMALL>
@@ Line 306: / Line 264: @@
 Image:Pityriasis versicolor64.jpg|Pityriasis versicolor. <SMALL><SMALL>''[http://www.atlasdermatologico.com.br/  Adapted from Dermatology Atlas.]''<ref name="Dermatology Atlas">{{Cite web | title = Dermatology Atlas | url = http://www.atlasdermatologico.com.br/}}</ref></SMALL></SMALL>
+</gallery>
+=====Extremities=====
+<gallery>
+Image:Pityriasis versicolor03.jpg|Pityriasis versicolor. <SMALL><SMALL>''[http://www.atlasdermatologico.com.br/  Adapted from Dermatology Atlas.]''<ref name="Dermatology Atlas">{{Cite web | title = Dermatology Atlas | url = http://www.atlasdermatologico.com.br/}}</ref></SMALL></SMALL>
+Image:Pityriasis versicolor10.jpg|Pityriasis versicolor. <SMALL><SMALL>''[http://www.atlasdermatologico.com.br/  Adapted from Dermatology Atlas.]''<ref name="Dermatology Atlas">{{Cite web | title = Dermatology Atlas | url = http://www.atlasdermatologico.com.br/}}</ref></SMALL></SMALL>
+Image:Pityriasis versicolor05.jpg|Pityriasis versicolor. <SMALL><SMALL>''[http://www.atlasdermatologico.com.br/  Adapted from Dermatology Atlas.]''<ref name="Dermatology Atlas">{{Cite web | title = Dermatology Atlas | url = http://www.atlasdermatologico.com.br/}}</ref></SMALL></SMALL>
+Image:Pityriasis versicolor21.jpg|Pityriasis versicolor. <SMALL><SMALL>''[http://www.atlasdermatologico.com.br/  Adapted from Dermatology Atlas.]''<ref name="Dermatology Atlas">{{Cite web | title = Dermatology Atlas | url = http://www.atlasdermatologico.com.br/}}</ref></SMALL></SMALL>
+Image:Pityriasis versicolor22.jpg|Pityriasis versicolor. <SMALL><SMALL>''[http://www.atlasdermatologico.com.br/  Adapted from Dermatology Atlas.]''<ref name="Dermatology Atlas">{{Cite web | title = Dermatology Atlas | url = http://www.atlasdermatologico.com.br/}}</ref></SMALL></SMALL>
+Image:Pityriasis versicolor37.jpg|Pityriasis versicolor. <SMALL><SMALL>''[http://www.atlasdermatologico.com.br/  Adapted from Dermatology Atlas.]''<ref name="Dermatology Atlas">{{Cite web | title = Dermatology Atlas | url = http://www.atlasdermatologico.com.br/}}</ref></SMALL></SMALL>
+Image:Pityriasis versicolor50.jpg|Pityriasis versicolor. <SMALL><SMALL>''[http://www.atlasdermatologico.com.br/  Adapted from Dermatology Atlas.]''<ref name="Dermatology Atlas">{{Cite web | title = Dermatology Atlas | url = http://www.atlasdermatologico.com.br/}}</ref></SMALL></SMALL>
+Image:Pityriasis versicolor51.jpg|Pityriasis versicolor. <SMALL><SMALL>''[http://www.atlasdermatologico.com.br/  Adapted from Dermatology Atlas.]''<ref name="Dermatology Atlas">{{Cite web | title = Dermatology Atlas | url = http://www.atlasdermatologico.com.br/}}</ref></SMALL></SMALL>
@@ Line 324: / Line 320: @@
 * Oral  antifungal [[Prescription drug|prescription only medication]]s include 400 mg of [[ketoconazole]] or [[fluconazole]] in a single dose, or ketoconazole 200 mg daily for 7 days, or [[itraconazole]] 400 mg daily for 3-7 days. The single-dose regimens can be made more effective by having the patient exercise 1-2 hours after the dose, to induce sweating. The sweat is allowed to evaporate, and showering is delayed for a day, leaving a film of the medication on the skin.
 * Recurrence is common and may be reduced by intermittent application of topical agents (such as [[tea tree oil]]) or adding a small amount of anti-dandruff shampoo to water used for bathing.
 ==External links==


Tinea versicolor
ICD-10	B36.0
ICD-9	111.0
DiseasesDB	10071
MedlinePlus	001465
eMedicine	derm/423