Diagnostic Role of Diffusion-Weighted and Dynamic Contrast-Enhanced Perfusion MR Imaging in Paragangliomas and Schwannomas in the Head and Neck =============================================================================================================================================== * Y. Ota * E. Liao * A.A. Capizzano * R. Kurokawa * J.R. Bapuraj * F. Syed * A. Baba * T. Moritani * A. Srinivasan