Wallerian degeneration of the pontocerebellar fibers.
نویسندگان
چکیده
Two cases of pontine infarct with Wallerian degeneration (WD) of the pontocerebellar fibers are described. WD of pontocerebellar fibers, seen bilaterally along the transverse pontine fibers, is more visible in the middle cerebellar peduncles and extends into the white matter of the cerebellar hemispheres. Understanding the anatomy of the white matter and the temporal evolution of this degeneration is essential in identifying WD.
منابع مشابه
Hot Cross Bun Sign Following Bilateral Pontine Infarction: A Case Report
The hot cross bun sign is characterized by cruciform T2 signal hyperintensity in the pons and has been reported to be a specific but not pathognomic for multiple system atrophy. It reflects degeneration of pontine neurons and transverse pontocerebellar fibers, regardless of the underlying pathogenic process. Here, we report a case of hot cross bun sign following bilateral pontine infarction due...
متن کاملBilateral Wallerian Degeneration of the Pontocerebellar Tracts
Wallerian degeneration is the process of progressive demyelination and disintegration of the distal axonal segment following the transection of the axon or damage to the neuron. We report a case of a patient with Wallerian degeneration of the pontocerebellar tracts. She had a history of a pontine infarction 3 months ago. Wallerian degeneration of pontocerebellar tracts is seen bilaterally and s...
متن کاملP187: Dose-Dependent Delay of Wallerian Degeneration Induced by Dexamethasone after Sciatic Nerve Transection in Rat
Wallerian degeneration is an innate immune response which occurs after some kinds of nerve damages such as neurodegenerative disease and acute axonal injury. In clinic, dexamethasone as an anti-inflammatory drug has been used for many years to treat nerve injuries. In present study, we aimed to study the effects of various doses of dexamethasone on the Wallerian degeneration in rat. Twentyseven ...
متن کاملWatery and dark axons in Wallerian degeneration of the opossum's optic nerve: different patterns of cytoskeletal breakdown?
In this paper we report a qualitative morphological analysis of Wallerian degeneration in a marsupial. Right optic nerves of opossums Didelphis marsupialis were crushed with a fine forceps and after 24, 48, 72, 96 and 168 hours the animals were anaesthetized and perfused with fixative. The optic nerves were immersed in fixative and processed for routine transmission electron microscopy. Among t...
متن کاملA gene affecting Wallerian nerve degeneration maps distally on mouse chromosome 4.
When a nerve axon is cut or crushed, the nerve fibers in the distal part of the axon, separated from the cell body, undergo a form of spontaneous degeneration, known as Wallerian degeneration. A substrain of the mouse inbred strain C57BL, known as C57BL/Ola, carries a mutant form of a gene involved in Wallerian degeneration in the peripheral and central nervous systems, and in retrograde degene...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- AJNR. American journal of neuroradiology
دوره 26 5 شماره
صفحات -
تاریخ انتشار 2005