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Hypertrophic Olivary Degeneration:MR Imaging and Pathologic Findings Radiology 192:539-543, Kitajima,M., 1994 See this aricle in Pubmed Article Abstract To assess magnetic resonance(MR)imaging findings or hypertrophic olivary degeneration(HOD)due to hemorrhage and correlate them with pathologic findings.Involvement of the central tegmental tract produced ipsilateral HOD;that of the dentate nucleus or superior cerebellar peduncle produced contralateral HOD.Bilateral olivary changes occurred only when the TH also involved the superior cerebellar peduncle.In bilateral TH's,HOD was limited to the dominant bleeding side because of the lateral position of the central tegmental tract.Hyperintense areas of the oliva appeared 3 weeks after ictus.Hypertrophy appeared after 5-15 months.Microscopically, vacuolar degeneration of neurons and hypertrophy of astrocytes with gliosis were seen.

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(click to filter results - removes previous filter) brainstem,hemorrhage,primary cerebellar hemorrhage MRI MRI,abnormal neuropathology olivary degeneration,hypertrophic pontine hemorrhage transsynaptic degeneration

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