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Case Reports
. 2017 Jul 27:2017:bcr2017220212.
doi: 10.1136/bcr-2017-220212.

Hypertrophic olivary degeneration

Stephanie Anastasi  1 , Reuben Grech  1
Affiliations
Case Reports

Hypertrophic olivary degeneration

Stephanie Anastasi et al. BMJ Case Rep. .
No abstract available

Keywords: brain stem / cerebellum; cranial nerves; neuroimaging; radiology.

PubMed Disclaimer

Conflict of interest statement

Competing interests: None declared.

Figures

Figure 1
Figure 1
Axial T2-weighted sequence showing intratumoral haemorrhage within a large left cerebello-pontine angle lesion in keeping with a vestibular schwannoma (panel A). Axial fluid attenuated inversion recovery (FLAIR) image through the posterior fossa after 6 months demonstrating atrophic changes and haemosiderin deposition in the left middle cerebellar peduncle (panel B).
Figure 2
Figure 2
Axial (panel A) and sagittal (panel B) T2-weighted images demonstrating a well-defined hyperintense, expansile lesion centred in the left olivary nucleus. Features are consistent with HOD secondary to a lesion in the triangle of Guillain and Mollaret (Figure 1). HOD, hypertrophic olivary degeneration.
Figure 3
Figure 3
The medullary lesion does not enhance following contrast administration (panel A) and does not restrict diffusion (panel B). Differential diagnoses of HOD include infarction, neoplasms and demyelination. HOD, hypertrophic olivary degeneration.
See this image and copyright information in PMC

References

    1. Sarawagi R, Murugesan A. Hypertrophic olivary degeneration - a report of two cases. J Clin Imaging Sci 2015;5:8 doi:10.4103/2156-7514.150454 - DOI - PMC - PubMed
    1. Bruno MK. Hypertrophic Olivary Degeneration. Arch Neurol 2012;69:274 doi:10.1001/archneurol.2011.657 - DOI - PubMed

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