Abstract
Keratoacanthoma is a relatively common benign squamous neoplasm that may show spontaneous clearing. Although the cause of the tumour is unknown, there are some reports describing keratoacanthoma following various types of trauma or secondary to other skin lesions. Thermal burns are reported to be important preceding traumas in the development of keratoacanthomas. whereas there is only one report of cold trauma of cryotherapy. We report a rare case of keratoacanthoma arising in the site of cryotherapy applied for solar keratosis.
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