peduncle

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Related to cerebellar peduncles: cerebellum, pons

peduncle

1. the stalk of a plant bearing an inflorescence or solitary flower
2. Anatomy a stalklike structure, esp a large bundle of nerve fibres within the brain
3. Pathol a slender process of tissue by which a polyp or tumour is attached to the body
4. Biology another name for pedicel

peduncle

[′pē‚dəŋ·kəl]
(anatomy)
A band of white fibers joining different portions of the brain.
(botany)
A flower-bearing stalk.
A stalk supporting the fruiting body of certain thallophytes.
(invertebrate zoology)
The stalk supporting the whole or a large part of the body of certain crinoids, brachiopods, and barnacles.
References in periodicals archive ?
Bilateral Wallerian degeneration of the medial cerebellar peduncles after ponto-mesencephalic infarction.
His brain MRI showed atrophy of pons, medulla and cerebellum, and high signals in pons and middle cerebellar peduncle with cruciform pontine hyperintensity (hot cross bun sign) on axial T2W image (Figure-1).
MRI brain showing prominent and elongated cerebellar peduncle with dysplastic vermis giving " Molar tooth appearance" (Figure 4).
Fifth patient with cerebellar signs, showed abnormal high intensity in both inferior cerebellar peduncle.
Damage to the cerebellum or the inferior cerebellar peduncle causes ataxia.
Lesions can involve the substantia nigra, periaqueductal gray matter within the midbrain, inferior colliculus, inferior olivary nuclei, inferior cerebellar peduncles, medulla, solitary tract in the medulla, central tegmental tract and reticular formation in the dorsal pons.
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.
There is severe hypogenesis of the cerebellar vermis, enlarged, horizontal superior cerebellar peduncles, a small mid brain in the anteroposterior direction, and a "batwing" configuration of the mid-superior fourth ventricle (Figures 1 and 2).
This picture has also been reported in bilateral thalamotomy performed for Parkinmson's disease, in lesions in the supplementary motor area and bilateral edema in the brachium pontis/conjunctivum or superior cerebellar peduncles (8, 24, 25).
3), a diagnosis of Joubert syndrome and related disorders (2) was made by the pathognomic finding of a 'molar tooth' sign at the ponto-mesencephalic junction, representing vermian aplasia and stretched superior cerebellar peduncles with a deep interpeduncular fossa.