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*Desmoglein 1, desmoglein 3 - abnormal. | *Desmoglein 1, desmoglein 3 - abnormal. | ||
==Hailey-Hailey disease= | ==Familial benign pemphigus== | ||
*AKA ''Hailey-Hailey disease''. Was described by two brothers - that's why it is ''Hailey-Hailey''.<ref name=emed_hailey>URL: [http://emedicine.medscape.com/article/1063224-overview http://emedicine.medscape.com/article/1063224-overview]. Accessed on: 9 September 2011.</ref> | |||
===General=== | ===General=== | ||
* | *Genetic - autosomal dominant with incomplete penetration.<ref name=emed_hailey/> | ||
**Desmosomal defect - due to mutation in the gene ''ATP2C1''.<ref name=emed_hailey/> | |||
Clinical: | |||
* | *Chest. | ||
*Intertriginous regions. (???) | |||
*Typically presents individual in their 30s and 40s.<ref name=emed_hailey/> | |||
===Microscopic=== | ===Microscopic=== | ||
Features: | Features: | ||
*Suprabasilar blistering. | *Suprabasilar blistering. | ||
*Acanthosis (thick epidermis). | |||
Notes: | |||
*Hair folicles spared. | |||
DDx: | DDx: |
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