Dec 27, 2021 · Gross anatomy. The putamen is a round structure situated at the base of the forebrain and is the most lateral of the basal ganglia nuclei on axial section. Medially to it lies the globus pallidus and laterally, the external capsule.The putamen and globus pallidus are collectively referred to as the lentiform nucleus owing to their lens-like shape.. Through various pathways, the putamen is ...

The putamen (/ p j u ˈ t eɪ m ə n /; from Latin, meaning "nutshell") is a subcortical nucleus with a rounded structure, in the basal ganglia nuclear group. It is located at the base of the forebrain and above the midbrain. The putamen and caudate nucleus together form the dorsal striatum.

MRI almost always shows characteristic changes combining iron accumulation and additional neuroimaging abnormalities. Iron-sensitive MRI shows iron deposition in the basal ganglia, particularly in bilateral globus pallidus and substantia nigra.

This study investigated the value of hypointense signals in the putamen (“black straight-line sign”) in diffusion-weighted imaging (DWI) of brain MRI for distinguishing (MSA) from Parkinson's disease (PD).

Abnormal MRI findings are bilateral high-signal, T2-weighted abnormalities in the basal ganglia (particularly putamen, caudate head, ventral thalamus, dentate nucleus of the brainstem and cerebellum, and atrophy of the cortex and cerebral white matter. in this patient, hepatic failure was not seen and the patient’s age was not typical for ...

• Neostriatum = caudate nucleus + putamen. Basal ganglia denote the nuclei of gray matter deep below the cerebral hemispheres. Brain MRI: axial view, T1-weighted. Level 1. Image 1. 1, Caudate nucleus. 2, Septum pellucidum. 3, Lateral ventricle. Brain MRI: coronal view, T1-weighted. Level 2. Image 2.

BACKGROUND AND PURPOSE: A hyperintense putaminal rim, putaminal hypointensity, and putaminal atrophy on T2-weighted MR images are findings suggestive of parkinsonian-dominant multiple system atrophy (MSA-P).

Nov 12, 2020 · Brain MRI mostly shows bilateral cystic lesions of the putamen and the brain parenchyma, coexisting with corpus callosum abnormalities, asymmetric hydrocephalus and small pons . In less severe forms, basal ganglia lesions seen on MRI might be reversible with treatment, as shown by follow-up MRI.

Using magnetic resonance imaging to assess structural connectivity in healthy subjects, we show that portions of the putamen activated during pain are connected not only with cortical regions involved in sensory-motor processing, but also regions involved in attention, memory and affect.

These criteria include the hyperintense MRI signal (more hyperintense in DWI than FLAIR) within caudate nucleus and putamen or at least from two areas of the cerebral cortex (temporal, parietal or occipital).