Diffuse actinic keratinocyte dysplasia (Q43976): Difference between revisions

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+CID11:EK90.1
@@ Property / CURIE: CID11:EK90.1 / rank @@
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+dki-india-EK90.1
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+August 2026Timestamp +2026-08-13T00:00:00Z
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@@ Property / Collection date: 13 August 2026 / rank @@
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+L57.0
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Latest revision as of 11:13, 13 August 2026

Diffuse actinic dysplasia develops after repeated exposure of skin to ultraviolet radiation, usually over decades, and results from cumulative DNA damage within the nuclei of epidermal keratinocytes. It is characterised initially by subtle diffuse skin changes including mottling, erythema, telangiectasia and irregular fine scaling. It is seen most commonly on the unprotected scalp skin of bald men. Histologically there are early signs of dysplasia in the basal epidermis. As damage accumulates the clinical changes become more pronounced with the formation of discrete actinic keratoses, from which intraepidermal or invasive squamous cell carcinoma may develop.

Language	Label	Description	Also known as
default for all languages	EK90.1
English	Diffuse actinic keratinocyte dysplasia	Diffuse actinic dysplasia develops after repeated exposure of skin to ultraviolet radiation, usually over decades, and results from cumulative DNA damage within the nuclei of epidermal keratinocytes. It is characterised initially by subtle diffuse skin changes including mottling, erythema, telangiectasia and irregular fine scaling. It is seen most commonly on the unprotected scalp skin of bald men. Histologically there are early signs of dysplasia in the basal epidermis. As damage accumulates the clinical changes become more pronounced with the formation of discrete actinic keratoses, from which intraepidermal or invasive squamous cell carcinoma may develop.