Search results for “cerebral atrophy”

141 results found
Article

Cerebral atrophy

Cerebral atrophy is the morphological presentation of brain parenchymal volume loss that is frequently seen on cross sectional imaging. Rather than being a primary diagnosis, it is the common endpoint for range disease processes that affect the central nervous system. Though often no identifiabl...
Case

Cerebral atrophy

 Diagnosis certain
Radswiki
Published 20 Oct 2010
74% complete
CT
Case

Progressive cerebral atrophy: pediatric

 Diagnosis probable
Dr Ian Bickle
Published 22 Apr 2017
68% complete
MRI
Case

Evolution of cerebral infarction: edema to laminar necrosis and hemorrhagic transformation then to atrophy

 Diagnosis certain
Dr Chris O'Donnell
Published 23 Dec 2014
95% complete
CT
Article

Wallerian degeneration

Wallerian degeneration is the process of antegrade degeneration of the axons and their accompanying myelin sheaths following proximal axonal or neuronal cell body lesions. It may result following neuronal loss due to cerebral infarction, trauma, necrosis, focal demyelination, or hemorrhage.  In...
Article

Hot cross bun sign (pons)

The hot cross bun sign refers to the MRI appearance of the pons in a variety of neurodegenerative diseases.  T2 hyperintensity forms a cross on axial images through the pons, representing selective degeneration of pontocerebellar tracts. It has been described in 1: multiple system atrophy (MSA...
Article

Dyke-Davidoff-Masson syndrome

Dyke-Davidoff-Masson syndrome (DDMS) is a condition characterized by hemicerebral atrophy/hypoplasia secondary to brain insult usually in fetal or early childhood period and is accompanied by ipsilateral compensatory osseous hypertrophy and contralateral hemiparesis. It is characterized by: th...
Article

Congenital cerebral toxoplasmosis

Congenital cerebral toxoplasmosis is a manifestation of congenital toxoplasmosis and refers to development of cerebral toxoplasmosis in the fetus through maternal transmission. Please refer on congenital toxoplasmosis to a broad discussion on epidemiology and pathology.  Radiographic features ...
Article

Morning glory sign (midbrain)

Morning glory sign of progressive supranuclear palsy (PSP) and multisystem atrophy, not to be confused with morning glory syndrome, refers to the appearance of the midbrain on axial imaging 1. Graphically this is identified on a axial image at the level of the midbrain by drawing 1:   a horizo...
Article

Myoclonic epilepsy with red ragged fibers (MERRF)

Myoclonic epilepsy with red ragged fibers (MERRF) is a rare, multisystem mitochondrial disorder.  Clinical presentation Patients usually present in late adolescence or early adulthood with 1-3 myoclonus epilepsy cerebellar ataxia intellectual disability vision and/or hearing loss cardiom...
Article

Visual agnosia

Visual agnosia is a special type of agnosia where patients are unable to recognize objects despite having knowledge about them and being able to visually perceive them. It typically occurs when there is damage to the ventral occipitotemporal pathway, such as in posterior cerebral atrophy (Benso...
Article

Parry-Romberg syndrome

Parry-Romberg syndrome (PRS), also known as progressive facial hemiatrophy (PFH), is a rare progressive craniofacial disorder (phakomatosis). It is classically characterized by a slow progressive degeneration (atrophy) of the soft tissues of half of the face (hemifacial atrophy). This involves ...
Article

Global cortical atrophy scale

The global cortical atrophy (GCA) scale, also known as the Pasquier scale, is a qualitative rating system developed to assess cerebral atrophy, especially in the context of neurodegenerative diseases. It evaluates atrophy in 13 brain regions assessed separately in each hemisphere and resulting i...
Article

Transependymal edema

Transependymal edema, also known as interstitial cerebral edema, is a type of cerebral edema that occurs with increased pressure within the cerebral ventricles. FLAIR is the most sensitive MRI sequence for detection. Pathology The ventricular ependymal lining is eventually disrupted, allowing ...
Article

Sneddon syndrome

Sneddon syndrome is a type of systemic non-inflammatory vasculopathy characterized by livedo reticularis and progressive and occlusive cerebrovascular thrombosis involving the medium-sized arteries.  Clinical presentation livedo reticularis as a skin manifestation  progressive cerebral stroke...
Article

Interseptal distance

The interseptal distance (ISD) is a measurement used to assess septal area atrophy as a marker for neurodegenerative conditions in patients with memory problems 1. It is proposed that atrophy of the septal nuclei can commonly be seen in conditions associated with hippocampal atrophy, particular...
Article

Cella media index

The cella media index is one of the methods used to assess ventricle size with respect to brain tissue and cerebral atrophy. It is the ratio of biparietal diameter of skull to maximum external diameter of lateral ventricles at cella media (i.e central part of lateral ventricles).A normally cella...
Article

Cortical vein sign

The cortical vein sign refers to the presence of superficial cortical veins seen on MRI and CT (particularly with contrast injection) traversing an enlarged subarachnoid space, differentiating it from the similar radiological appearance of a subdural hygroma. Although initially proposed as a me...
Article

Hemiconvulsion-hemiplegia epilepsy syndrome

Hemiconvulsion-hemiplegia epilepsy syndrome (HHE) is a clinical syndrome of infancy or early childhood that is associated with seizures, cerebral hemiatrophy and transient or permanent epilepsy. It refers to the characteristic holohemispheric global atrophy of one hemisphere, that is independen...
Article

Adrenomyeloneuropathy

Adrenomyeloneuropathy is a form of X-linked adrenoleukodystrophy characterized by pronounced involvement of the spinal cord with only minor involvement of the cerebral white matter.  Clinical presentation Clinical presentation depends on whether or not there is also cerebral involvement.  In ...

Updating… Please wait.

 Unable to process the form. Check for errors and try again.

 Thank you for updating your details.