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염꽃보라 ( Kkot Bora Yeom ),진선필 ( Seon Pil Jin ),최재우 ( Jae Woo Choi ),권순효 ( Soon Hyo Kwon ),윤상웅 ( Sang Woong Youn ) 대한피부과학회 2011 대한피부과학회지 Vol.49 No.10
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. (Korean J Dermatol 2011;49(10):923∼926)