Eruptive squamous atypia
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Synopsis
ESA can be subcategorized into 2 morphologic types. The first type is focal koebnerizing ESA (FK-ESA), which appears as a hyperkeratotic papule or plaque that arises in areas of localized skin trauma, such as surgery, laser therapy, or tattoo application. The second type is diffuse ESA (D-ESA), which presents as multifocal ESA lesions, often on the arms or legs.
Both patterns may occur simultaneously. A skin biopsy should be used to confirm the diagnosis.
Codes
L85.8 – Other specified epidermal thickening
SNOMEDCT:
69740004 – Squamous cell atypia
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Last Updated:02/13/2022