PMC8022819_01
Magnetic resonance imaging of the brain on Day 1 of hospitalization - Ring enhancing lesion in lateral medulla.
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Magnetic resonance imaging (MRI) of the brain showed a ring enhancing lesions in the lateral medulla (Fig. 1).
Magnetic resonance imaging of the brain on Day 4 of hospitalization - Progression of ring enhancing lesions in brain stem.
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Repeat MRI of the brain on fourth day of admission showed progression to multiple ring enhancing lesions in the brain stem (Fig. 2).
Computed tomography of the head on day 8 of hospitalization - Extensive brainstem hemorrhage with hydrocephalus.
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Computed tomography (CT) of the head showed extensive brainstem hemorrhage with resultant hydrocephalus (Fig. 3).