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Difference between revisions of "Non-malignant skin disease"
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Non-malignant skin disease (view source)
Revision as of 16:16, 26 February 2012
, 16:16, 26 February 2012→Acne vulgaris: tweak
m (→Gross) |
(→Acne vulgaris: tweak) |
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===Microscopic=== | ===Microscopic=== | ||
Features:<ref>{{Ref Derm|76}}</ref> | Features:<ref>{{Ref Derm|76}}</ref> | ||
*Epidermal invagination | *Epidermal invagination ''or'' cyst at site of a hair follicle - contains: | ||
**Sebum. | **Sebum. | ||
**+/-Bacteria (''Propionibacterium acnes'') and neurophils. | **+/-Bacteria (''Propionibacterium acnes'') and inflammatory cells - typically neurophils. | ||
Subtyped into: | Subtyped into: | ||
#Open (" | #Open comedones ("blackheads") - no extension to epidermal surface. | ||
#Closed (" | #Closed comedones ("whiteheads") - to epidermal surface have wide opening. | ||
Image: | |||
*[http://www.dermnet.com/images/Acne-Histology/picture/4069 Acne (dermnet.com)]. | |||
=Very common - viral= | =Very common - viral= | ||