Treatment of Keratoacanthoma by 5 - Fluorouracil Intralesional Injection

Lee, Mi Ran; Won, Young Ho; Lee, Seung Chul; Chun, Inn Ki

Abstract

Keratoacanthoma is a rapidly growing, usually self-limited, hnil n tumor that has a striking rescmblance clinically ancl histologically to squamous cell carcinoma. Although thc keratoacanthorna is involuted spontaneously, then are several reasons why these lesions should treated. Treatment may hasten resolution, prevent extensive destruction of normal tissue, and improve she overall cosmetic result, and there are norabsolutely reliable diagnostic critcria to differcntiate these lesions from squamous cell carcinom complete excision is currently the choice of treatment or the majority of solitary keratoacanthims. However, this can lead to significant cosmetic or functional dcfects particularly in lesions located on intricate areas of thc face. Effective nonsurgical mclalities are rcquirced in such cases. Herein we report three cases of keratoacanthoma successfully reited by intralesional injection of 5-fluorouracil, and suggest that intralesional injection of 5-fluroiracil is a effective, safead convenient method of treatment for the multiplc keratoacahtnom and solitary lesions which are difficult to remove surgically.