Eun T Son1, Hwan J Choi2, Hyun J Lee3. 1. Department of Plastic and Reconstructive Surgery, College of Medicine, Soonchunhyang University, Cheonan, Korea. 2. Department of Plastic and Reconstructive Surgery, College of Medicine, Soonchunhyang University, Cheonan, Korea. medi619@hanmail.net. 3. Department of Pathology, College of Medicine, Soonchunhyang University, Cheonan, Korea.