Patterns of Regional Metastasis in Patients with Periorbital Cancer

Hyun Chang, Youngjin Ahn, Dong-Hwan Roh, Tack-Kyun Kwon, Kwang Hyun Kim, Myung-Whun Sung and J. Hun Hah Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Hospital, Seoul; and Marronnier ENT Clinic, Seoul; and Department of Otolaryngology-Head and Neck Surgery, National Medical Center, Seoul; and Sensory Organ Research Institute, Medical Research Center, Seoul National University, Seoul; and Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea