Slice location – histopathology and ex-vivo MRI; A) Illustrates specimen sectioning using the slits in the prostate mold. B) The corresponding ex-vivo MRI slices, centered over the guiding slits in the mold. C) The resulting overlap between whole-mount section (pink), ex-vivo MRI slice (gray), and histopathology slice (darker pink). D) The ex-vivo MRI localizers, where the coronal and sagittal were used when positioning the ex-vivo MRI slices, guided by increased MRI signal in the slits in the mold (illustrated as spikes in the ellipsoids). (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.)