Fig. 2.

MRI brain w/o contrast, sagittal view. The cerebellum and brainstem appear normal in size, morphology and signal characteristics. Normal SWI signal characteristics of the substantia nigra and red nucleus. Hippocampal formations have normal size, morphology and signal characteristics. No diffusion restriction or significant SWI susceptibility. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)