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n. pl. pu·tam·i·na (-tăm′ə-nə)
1. The hard endocarp of certain fruits; pyrene.
2. The reddish, outermost, and largest of the three portions into which the lentiform nucleus of the brain is divided.

[Latin putāmen, that which falls off in pruning, shell, husk, from putāre, to prune; see pau- in Indo-European roots.]


n, pl -tamina (-ˈtæmɪnə)
(Botany) the hard endocarp or stone of fruits such as the peach, plum, and cherry
[C19: from Latin: clippings, from putāre to prune]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.putamen - the outer reddish part of the lenticular nucleus
basal ganglion - any of several masses of subcortical grey matter at the base of each cerebral hemisphere that seem to be involved in the regulation of voluntary movement
lenticular nucleus, lentiform nucleus - a basal ganglion shaped like a lens and including the outer reddish putamen and the inner pale yellow pallidum
References in periodicals archive ?
Bilateral putaminal necrosis in a comatose patient with metabolic acidosis.
The publication titled "Magnetic Resonance Imaging-Guided Phase 1 Trial of Putaminal AADC Gene Therapy for Parkinson's Disease," can be accessed online.
Bilateral Putaminal and Optical Involvement After Low Dose of Methanol Exposure: Case Report.
Failure of surgery to improve outcome in hypertensive putaminal haemorrhage.
Differential diagnoses include head injury/trauma, lobar extension of a hypertensive putaminal hemorrhage, a hemorrhagic transformation of an ischemic stroke, an arteriovenous malformation, or a hemorrhagic tumor.
Possible hypotheses for putaminal T1 hyperintensity include a protein hydration layer in the swollen gemistocytes, putaminal petechial hemorrhage, demyelination, transient ischemic changes, and localized Wallerian degeneration (5).
However, these subtypes share common histopathological changes, characterized by neuronal loss, gliosis and the presence of glial cytoplasmic inclusions (GCI) with a-synuclein.5 In MSA-P the degenerative changes predominantly affect the basal ganglia, particularly the putamen seen as hyperintense rim at the putaminal edge, atrophy and hypointensity of putaminal body on T2WI while in MSA-C changes predominantly affect infratentorial structures like pons and cerebellum, seen as atrophy and hyperintense signals in pons, cerebellum and middle cerebellar peduncles with pontine hyperintensity (hot cross bun sign) on axial image,4 which was seen in both of our patient's MRI.
A significant association was found between plasma ApoA1 and putaminal dopamine transporter (DAT) uptake, and it was also confirmed that lower ApoA1 level was related with more severe DAT deficit, even adjusting the confounding factor.[31] Hence, the level of ApoA1 could possibly reflect the severity of motor impairment based on the concept that the level of DAT uptake could reflect motor impairment extent.
An MRI brain scan showed left-sided caudate head and anterior putaminal high signal.
Alcohol is a risk factor not for thalamic but for putaminal hemorrhage:The Akita Stroke Registry.
The aim of this study is to assess the clinical efficacy of minipterional craniotomy in the treatment of hypertensive putaminal hemorrhage (HPH).
In our patient, the putaminal lesion could have altered this delicate balance, leading to distorted afferent cortical information.