PMC4198399_01
Four-year Follow-up Magnetic Resonance Imaging.. (A,B) serial T2-weighted and (C,D) fluid-attenuation inversion recovery (FLAIR) images showing the olivary nucleus. There is a hyperintense signal in the inferior olivary nucleus bilaterally, signal in T2 more pronounced than FLAIR, and enlargement of olives, slightly more prominent on the right, consistent with HOD. (E) T1-gadolinium image with no enhancement. (F) A rim of signal loss due to hemosiderin on gradient echo sequence, confirming a cavernous malformation on the right midbrain and prior surrounding hemorrhage.
tre-04-264-6019-2-g001.jpg
PMC4198399_01_tre-04-264-6019-2-g001.jpg
f01
No contrast enhancement (gadolinium) was observed (Figure 1).