1. From the Departments of Radiology (D.K.K., J.Y.J., H.K., Sungwon Lee, S.Y.L., Seungeun Lee) and Hematology (S.S.P., C.K.M.), Seoul St Mary’s Hospital, College of Medicine, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul 06591, Republic of Korea.