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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 15:12, 6 September 2012
, 15:12, 6 September 2012→Seborrheic keratosis: +subytpes
(→Seborrheic keratosis: more) |
(→Seborrheic keratosis: +subytpes) |
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*Clusters of cells with brown granular material in the superficial dermis/dermoepidermal junction - pigmented melanocytes. | *Clusters of cells with brown granular material in the superficial dermis/dermoepidermal junction - pigmented melanocytes. | ||
DDx:<ref>{{Ref Derm|338-9}}</ref> | DDx:<ref name=Ref_Derm338-9>{{Ref Derm|338-9}}</ref> | ||
*[[Actinic keratosis]] - irritated SK | *[[Actinic keratosis]] - irritated SK | ||
*[[Verruca vulgaris]] - SK may have papillomatous projections. | *[[Verruca vulgaris]] - SK may have papillomatous projections. | ||
| Line 206: | Line 206: | ||
*[http://www.dermatlas.org/derm/IndexDisplay.cfm?ImageID=-1985374774 Seborrheic keratosis - high mag. (dermatlas.org)]. | *[http://www.dermatlas.org/derm/IndexDisplay.cfm?ImageID=-1985374774 Seborrheic keratosis - high mag. (dermatlas.org)]. | ||
*[http://www.dermatlas.org/derm/IndexDisplay.cfm?ImageID=-1880960893 Seborrheic keratosis - low mag. (dermatlas.org)]. | *[http://www.dermatlas.org/derm/IndexDisplay.cfm?ImageID=-1880960893 Seborrheic keratosis - low mag. (dermatlas.org)]. | ||
====Histologic subtypes==== | |||
Like very common lesion, there are subtypes:<ref name=Ref_Derm338-9>{{Ref Derm|338-9}}</ref> | |||
*Acanthotic seborrheic keratosis - thickened ''stratum spinosum''; thick epidermis. | |||
*Reticulated seborrheic keratosis - vaguely resembles [[fibroepithelioma of Pinkus]] (BCC, fibroepitheliomatous pattern). | |||
*Irritated seborrheice keratosis - spongiosis (epidermal intercellular edema) and inflammation. | |||
*Digitated seborrheic keratosis - papillomatous projections. | |||
==Pilomatricoma== | ==Pilomatricoma== | ||