A keratoacanthoma with venous invasion

Abstract

Keratoacanthomas are variously regarded as a self-limiting variant of squamous cell carcinoma or as a distinct benign lesion and they very seldom show attributes normally associated with malignant behaviour, such as perineural invasion. Herein we report the case of a keratoacanthoma with venous invasion proven by immunoperoxidase and elastic tissue stains.

Keywords

• keratoacanthoma
• squamous cell carcinoma
• dermatoscopy
• dermoscopy
• dermatopathology
• venous invasion