Lichen simplex chronicus: Difference between revisions
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'''Lichen simplex chronicus''' (LSC) is a [[skin]] disorder characterized by chronic itching and scratching. The constant scratching causes thick, leathery, brownish skin. | '''Lichen simplex chronicus''' (LSC) is a [[skin]] disorder characterized by chronic itching and scratching. The constant scratching causes thick, leathery, brownish skin. | ||
== Classification == | |||
* [Disease name] may be classified according to [classification method] into [number] subtypes/groups: | |||
:* [group1] | |||
:* [group2] | |||
:* [group3] | |||
* Other variants of [disease name] include [disease subtype 1], [disease subtype 2], and [disease subtype 3]. | |||
==Causes== | ==Causes== | ||
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This is a skin disorder characterized by a self-perpetuating scratch-itch cycle: | This is a skin disorder characterized by a self-perpetuating scratch-itch cycle: | ||
*It may begin with something that rubs, irritates, or scratches the skin, such as clothing. | *It may begin with something that rubs, irritates, or scratches the skin, such as clothing. | ||
*This causes the person to rub or scratch the affected area. Constant scratching causes the skin to thicken. | *This causes the person to rub or scratch the affected area. Constant scratching causes the skin to thicken. | ||
*The thickened skin itches, causing more scratching, causing more thickening. | *The thickened skin itches, causing more scratching, causing more thickening. | ||
The skin may become leathery and brownish in the affected area. | The skin may become leathery and brownish in the affected area. | ||
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=====Extremity===== | =====Extremity===== | ||
<gallery> | <gallery> | ||
File:Lichen simplex10.jpg|Lichen simplex. <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> | |||
File:Lichen simplex09.jpg|Lichen simplex. <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> | |||
File:Lichen simplex08.jpg|Lichen simplex. <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> | |||
File:Lichen simplex07.jpg|Lichen simplex. <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> | |||
File:Lichen simplex02.jpg|Lichen simplex. <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> | |||
File:Lichen simplex01.jpg|Lichen simplex. <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> | </gallery> | ||
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<gallery> | <gallery> | ||
File:Lichen simplex06.jpg|Lichen simplex. <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> | |||
File:Lichen simplex05.jpg|Lichen simplex. <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> | </gallery> | ||
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<gallery> | <gallery> | ||
File:Lichen simplex04.jpg|Lichen simplex. <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> | |||
File:Lichen simplex03.jpg|Lichen simplex. <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> | </gallery> | ||
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<gallery> | <gallery> | ||
File:Lichen simplex16.jpg|Lichen simplex. <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> | |||
File:Lichen simplex15.jpg|Lichen simplex. <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> | |||
File:Lichen simplex12.jpg|Lichen simplex. <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> | |||
File:Lichen simplex13.jpg|Lichen simplex. <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> | </gallery> | ||
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==See also== | ==See also== | ||
* [[Pruritus]] | *[[Pruritus]] | ||
{{Diseases of the skin and subcutaneous tissue}} | {{Diseases of the skin and subcutaneous tissue}} |
Revision as of 16:40, 15 June 2021
Lichen simplex chronicus | |
ICD-10 | L28.0 |
---|---|
ICD-9 | 698.3 |
DiseasesDB | 31441 |
MedlinePlus | 000872 |
eMedicine | derm/236 |
}
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Kiran Singh, M.D. [2]
Overview
Lichen simplex chronicus (LSC) is a skin disorder characterized by chronic itching and scratching. The constant scratching causes thick, leathery, brownish skin.
Classification
- [Disease name] may be classified according to [classification method] into [number] subtypes/groups:
- [group1]
- [group2]
- [group3]
- Other variants of [disease name] include [disease subtype 1], [disease subtype 2], and [disease subtype 3].
Causes
This is a skin disorder characterized by a self-perpetuating scratch-itch cycle:
- It may begin with something that rubs, irritates, or scratches the skin, such as clothing.
- This causes the person to rub or scratch the affected area. Constant scratching causes the skin to thicken.
- The thickened skin itches, causing more scratching, causing more thickening.
The skin may become leathery and brownish in the affected area. This disorder may be associated with atopic dermatitis (eczema) or psoriasis. It may also be associated with nervousness, anxiety, depression, and other psychological disorders.
It is common in children, who chronically scratch insect bites and other areas. It can also be common in mentally retarded children who have chronic repetitive movements.
Diagnosis
Physical Examination
Skin
Extremity
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Lichen simplex. Adapted from Dermatology Atlas.[1]
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Lichen simplex. Adapted from Dermatology Atlas.[1]
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Lichen simplex. Adapted from Dermatology Atlas.[1]
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Lichen simplex. Adapted from Dermatology Atlas.[1]
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Lichen simplex. Adapted from Dermatology Atlas.[1]
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Lichen simplex. Adapted from Dermatology Atlas.[1]
Neck
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Lichen simplex. Adapted from Dermatology Atlas.[1]
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Lichen simplex. Adapted from Dermatology Atlas.[1]
Trunk
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Lichen simplex. Adapted from Dermatology Atlas.[1]
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Lichen simplex. Adapted from Dermatology Atlas.[1]
Genitalia
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Lichen simplex. Adapted from Dermatology Atlas.[1]
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Lichen simplex. Adapted from Dermatology Atlas.[1]
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Lichen simplex. Adapted from Dermatology Atlas.[1]
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Lichen simplex. Adapted from Dermatology Atlas.[1]
Treatment
Treatment is aimed at reducing itching and minimizing existing lesions because rubbing and scratching cause LSC. The itching and inflammation may be treated with a lotion or steroid cream applied to the affected area of the skin.
See also