Clinical Experience of Cutaneous Squamous Cell Carcinoma Arising in Keratoacanthoma.

Shin, Seung Jun; Park, Dong Ha

Case Report

Journal of the Korean Society of Plastic and Reconstructive Surgeons 2006;33(4):506-509.
Published online July 1, 2006.

Clinical Experience of Cutaneous Squamous Cell Carcinoma Arising in Keratoacanthoma.

Department of Plastic and Reconstructive Surgery, Ajou University School of Medicine, Suwon, Korea. growhand@hanmail.net

Abstract

PURPOSE
The cutaneous squamous cell carcinoma is the second most common skin malignancy. It is noted that keratoacanthoma is difficult to differentiate from squamous cell carcinoma, clinically or historically. It is still a hypothetical question whether keratoacanthoma is a pseudomalignancy or a form of squamous cell carcinoma. METHODS: We report the case of squamous cell carcinoma around left ala of nose in a 64-year-old female patient. Through an incisional biopsy, the mass was found to be keratoacanthoma in the pathologic report. An excisional biopsy was performed.
RESULTS
Pathologic report notified that it was found well-differentiated squamous cell carcinoma arising in keratoacanthoma with focal involvement of deep resection margin. Wide excision was made with 0.5-1.5cm margin and immediate reconstruction was performed.
CONCLUSION
The relationship between keratoacanthoma and squamous cell carcinoma has been debated in the treatment. It is still controversial whether to excise it or not. We concluded that kerathoacanthoma must be removed completely.

Keywords: Keratoacanthoma; Squamous cell carcinoma