Diffusion tensor imaging in hypertrophic olivary degeneration.
نویسندگان
چکیده
SUMMARY We report DTI and fiber tractography findings in a case of hypertrophic olivary degeneration. A 51-year-old man presented with an abnormal gait and visual difficulties. MR imaging showed enlargement of the right medullary olive and a vascular lesion in the right pontine tegmentum. Fiber tractography showed decreased volume of the right central tegmental tract, supporting a diagnosis of HOD.
منابع مشابه
A case of hypertrophic olivary degeneration after resection of cavernomas of the brain stem and review of the literature
Hypertrophic olivary degeneration is a transsynaptic form of degeneration, which is also a result of primary or secondary lesion and can damage the dento-rubro-olivary pathway. The dento-rubro-olivary pathway was first described by Guillain and Mollaret and is referred to as "the triangle of Guillain and Mollaret". Multiple factors can destroy the dento-rubro-olivary pathway, such as surgical o...
متن کاملDiffusion tensor imaging of Guillain-Mollaret triangle in patients with hypertrophic olivary degeneration.
The aim of the study is to analyze diffusion tensor imaging (DTI) characteristics of the Guillain-Mollaret triangle (GMT) in patients with hypertrophic olivary degeneration (HOD) and to investigate their correlation with previously reported histopathology. DTI was performed in 10 patients diagnosed with HOD. Fractional anisotropy, apparent diffusion coefficient, axial diffusivity, and radial di...
متن کاملMagnetic resonance imaging of hypertrophic olivary degeneration.
OBJECTIVE To review the pathophysiologic mechanisms involved in hypertrophic olivary degeneration, with attention to epidemiologic and clinical aspects and especially to imaging findings. MATERIAL AND METHODS We reviewed 5 patients diagnosed with hypertrophic olivary degeneration at our center from 2010 through 2013, analyzing relevant clinical, epidemiologic, and radiologic findings. RESUL...
متن کاملIdiopathic bilateral hypertrophic olivary degeneration.
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متن کاملBilateral Hypertrophic Olivary Degeneration in Wilson Disease
Hypertrophic olivary degeneration resulting from lesions of the dento-rubro-olivary pathway, also called Guillain-Mollaret-triangle, has been described previously in a number of cases. Reports about bilateral hypertrophic olivary degeneration of the inferior olivary nuclei are very limited, and the magnetic resonance imaging findings of hypertrophic olivary degeneration in Wilson disease have n...
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عنوان ژورنال:
- AJNR. American journal of neuroradiology
دوره 31 9 شماره
صفحات -
تاریخ انتشار 2010