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1Department of Dermatology, Yongdong Severance Hospital, Yonsei University College of Medicine, 146-92 Dogok-dong, Kangnam-gu, Seoul 135-720, Korea. wlewderm@yumc.yonsei.ac.kr
2Department of Dermatology, Dankook University College of Medicine, Cheonan, Korea.
Superficial epithelioma with sebaceous differentiation (SESD) is a rare benign neoplasm with peculiar histopathologic characteristics, which occurs in aged skin. We report upon a case of SESD occurring on the left upper back, which histopathologically is a superficial, multilobular tumor with numerous basaloid cells mixed with sebaceous cells attached to the overlying epidermis. This case represents a solitary benign neoplasm without any associated malignancy.