Korean J Dermatol.  2011 Oct;49(10):923-926.

Squamous Cell Carcinoma Arising in Pre-existing Seborrheic Keratosis

Affiliations
  • 1Department of Dermatology, Seoul National University College of Medicine, Seoul, Korea. swyoun@snu.ac.kr
  • 2Department of Dermatology, Seoul National University Bundang Hospital, Seongnam, Korea.

Abstract

Seborrheic keratosis is one of the most common benign epithelial tumors, especially in elderly patients. Squamous cell carcinoma is the second most common malignant tumor of the skin. Despite the fact that both tumors are common, malignant transformation of seborrheic keratosis rarely occurs. Herein we report a case of squamous cell carcinoma arising in a patient with pre-existing seborrheic keratosis.

Keyword

Seborrheic keratosis; Squamous cell carcinoma
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