Article Figures & Data
Figures
- fig 1.
Time course of olivary hypertrophy. The data points indicate the presence or absence of hypertrophy based on MR findings as a function of time after onset of clinical symptoms. Note that there is a higher density of data points between 0.5 and 5 years for the hypertrophy present category, indicating a high likelihood of finding hypertrophy during this time frame. Also note the absence of hypertrophy both early and late in the course of the disease
- fig 2.
Time course of T2 signal intensity changes in HOD. The data points indicate the presence or absence of increased signal on T2-weighted MR images as a function of time after onset of clinical symptoms. Note that increased T2 signal is observed very early in the course of the disease and that the signal increase persists indefinitely
- fig 3.
General model of time course of hypertrophy and T2 signal intensity in HOD derived from figures 1 and 2. The negative slope in the dashed line is speculative, suggesting that the oliva becomes atrophic
- fig 4.
MR examination, 20 months after pontine hemorrhage. Axial T2-weighted fast spin-echo image (TR/TE = 6000/92, echo train length = 12) at the level of the ION shows hypertrophy with hyperintensity of bilateral ION.fig 5. Follow-up axial T2-weighted fast spin-echo image (TR/TE = 5000/105, echo train length = 12) 49 months after hemorrhage into a pontine cavernoma shows hyperintensity in bilateral ION. No evidence of hypertrophy is present
- fig 6.
Drawing shows the triangle of Guillain and Mollaret
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