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Seborrhoeic keratosis with squamous atypia

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

Some seborrhoeic keratoses show squamous atypia similar to in situ or invasive squamous cell carcinoma. It is not known whether these constitute a separate subtype of benign lesion or whether they are an early stage in the natural history of squamous cell carcinoma.

Excision biopsy is the recommended treatment.

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