Jin Seok Kang1, Min Sung Tak1, Sang Gue Kang1, So Young Jin2. 1. Department of Plastic and Reconstructive Surgery, Soonchunhyang University Hospital, Soonchunhyang University College of Medicine, Seoul, Korea. 2. Department of Pathology, Soonchunhyang University Hospital, Soonchunhyang University College of Medicine, Seoul, Korea.