pontocerebellar fibers

pontocerebellar fibers

[TA]
fibers arising from the nuclei of the basilar pons and primarily crossing the midline (there is a modest uncrossed projection), entering the cerebellum through the middle cerebellar peduncle and terminating as mossy fibers in the cerebellar cortex.
Synonym(s): fibrae pontocerebellares [TA]
Farlex Partner Medical Dictionary © Farlex 2012

pon·to·cer·e·bel·lar fi·bers

(pon'tō-ser'e-bel'ăr fī'bĕrz) [TA]
Those fibers arising from the nuclei of the basilar pons and primarily crossing the midline (there is a modest uncrossed projection), centering the cerebellum through the middle cerebellar peduncle and terminating as mossy fibers in the cerebellar cortex.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
Finally, the pontocerebellar fibers terminate in the cerebellar hemispheres, vermis, and paraflocculus.[3],[9] Based on the special anatomical structures of decussation of fibers in the pons, an infarct in the ventral pons might affect the ipsilateral nuclei, and the tracts that pass to the contralateral MCPs and those passing across from the contralateral nuclei [Figure 5].
Hot cross bun sign refers to the cruciform shaped pontine T2 hyperintensity in multiple system atrophy due to selective loss of myelinated transverse pontocerebellar fibers and neurons in the pontine raphe and sparing of the pontine tagmentum and corticospinal tracts.3,6 Though hot cross bun sign is seen often in MSA, it is not pathognomonic but only a supportive sign on clinical background.7
These groups propose that the pontocerebellar fibers may play a large role in emotional modulation [4].
The characteristic T2 hyper intense sign in pons and middle cerebellar peduncle ("Cross sign") reflects pontocerebellar fibers degeneration and despite very suggestive of MSA it can be found in other forms of parkinsonism.
[sup][29] The radiological features could be found out when the atrophy and gliosis occurred in the transverse part of the pontocerebellar fibers traveling to the middle cerebellar peduncles, the crossing part of the pontocerebellar fibers at the pontine base, and the middle part of the reticular formation.