1 Department of Radiology, Changi General Hospital, Singapore.
2 Division of Interventional Radiology, Department of Radiology, Hospital of the University of Pennsylvania, Philadelphia, PA.
3 Department of Radiology, Seoul National University Hospital, 101 Daehak-ro, Jongro-gu, Seoul 110-744, South Korea. Electronic address: saebeom.hur@snu.ac.kr.
4 Department of Pathology, Seoul National University Hospital, Seoul, South Korea.
5 Penn Center for Lymphatic Disorders, Hospital of the University of Pennsylvania, Philadelphia, PA.