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| Fig. 1 |
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| Fig. 2: T1 shows a mostly isodense right cerbellar mass with some faint rim high attenuation. |
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| Fig. 3: T2 shows the mass is mostly dark w/ small surronding high signal vasogenic edema. Do you see the second lesion? |
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| Fig. 4: FLAIR makes the second lesion in the medial left cerebellum more conspicuous. |
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| Fig. 5: Gradient Recall (blood product sequence) shows moderate "blooming" consistent with hemosiderin. |
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| Fig. 6: The b=0 image from the diffusion series is a T2* seqence with similar "blooming" properties to the gradient recall sequence. |
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| Fig. 7: sag T1 shows an isodense mass in the right cerebellum. Basically, metHb is bright on T1. Extracellular Hb is bright on T2. (simplified version) |
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| Fig. 8: Gradient Recall (blood product sequence) shows moderate "blooming" consistent with hemosiderin. |
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| Fig. 9: T2 shows some surrounding, mild vasogenic edema. |
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| Fig. 10: Coronal T1 adds little |
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13 Y/O W/ 3D OCCIPITAL HEADACHE