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Difference between revisions of "Actinic keratosis"
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→Histologic subtypes of actinic keratosis
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*Yellow-brown scaly, patches. | *Yellow-brown scaly, patches. | ||
*Sandpaper sensation - on touching. | *Sandpaper sensation - on touching. | ||
*Usually small (<1cm), but larger lesions may occur. | |||
*May be pigmented.<ref>URL: [http://www.dermoscopy-ids.org/index.php/newest-case/79-lentigo-maligna-vs-pigmented-actinic-keratosis http://www.dermoscopy-ids.org/index.php/newest-case/79-lentigo-maligna-vs-pigmented-actinic-keratosis]. Accessed on: 23 August 2012.</ref> | *May be pigmented.<ref>URL: [http://www.dermoscopy-ids.org/index.php/newest-case/79-lentigo-maligna-vs-pigmented-actinic-keratosis http://www.dermoscopy-ids.org/index.php/newest-case/79-lentigo-maligna-vs-pigmented-actinic-keratosis]. Accessed on: 23 August 2012.</ref> | ||
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*[[Seborrheic keratosis]] - should not have basilar nuclear atypia. | *[[Seborrheic keratosis]] - should not have basilar nuclear atypia. | ||
*[[Lichenoid keratosis]] (esp. for ''lichenoid actinic keratosis'') - has a band of inflammatory cells in the superficial dermis. | *[[Lichenoid keratosis]] (esp. for ''lichenoid actinic keratosis'') - has a band of inflammatory cells in the superficial dermis. | ||
*Discoid Luphus Erythematosus. | |||
===Images=== | ===Images=== | ||
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Image:SkinTumors-P5280065.JPG | Actinic keratosis. (WC) | Image:SkinTumors-P5280065.JPG | Actinic keratosis. (WC) | ||
Image:SkinTumors-P5280055.JPG | Actinic keartosis. (WC) | Image:SkinTumors-P5280055.JPG | Actinic keartosis. (WC) | ||
Image:SkinTumors-P5280056.JPG | Actinic keratosis. (WC) | |||
</gallery> | |||
<gallery> | |||
Image:Bowenoid_actinic_keratosis_-_high_mag.jpg | Bowenoid actinic keratosis - high mag. (WC) | Image:Bowenoid_actinic_keratosis_-_high_mag.jpg | Bowenoid actinic keratosis - high mag. (WC) | ||
Image:Bowenoid_actinic_keratosis_-_very_high_mag.jpg | Bowenoid actinic keratosis - very high mag. (WC) | Image:Bowenoid_actinic_keratosis_-_very_high_mag.jpg | Bowenoid actinic keratosis - very high mag. (WC) | ||
</gallery> | </gallery> | ||
===Histologic subtypes of actinic keratosis=== | ===Histologic subtypes of actinic keratosis=== | ||
Like most common things, there are several variants:<ref name=Ref_Derm353>{{Ref Derm|353}}</ref> | Like most common things, there are several variants:<ref name=Ref_Derm353>{{Ref Derm|353}}</ref> | ||
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*Lichenoid actinic keratosis - band of inflammatory cells at the dermal-epidermal junction. | *Lichenoid actinic keratosis - band of inflammatory cells at the dermal-epidermal junction. | ||
**DDx: [[lichen planus]]. | **DDx: [[lichen planus]]. | ||
*Atrophic actinic keratosis. | |||
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