1. From the Departments of Radiology (Z.F., H.L., J.D., W.W., P.R.), Pathology (Q.C.), and Infectious Disease (Z.L.), The Third Xiangya Hospital of Central South University, No. 138 Tongzipo Rd, Changsha 410013, China; Department of Medical Imaging, Yueyang Central Hospital, Yueyang, China (Q.L., W.Z.); and Department of Diagnostic Radiology, Hunan Cancer Hospital, Changsha, China (X.Y.).