sparse white matter
Introduction
Introduction Leukoarasis occurs in people over the age of 50, and is common in patients with dementia and cerebrovascular disease. CT features manifested as bilateral white matter symmetry low density lesions, or complicated with cerebral infarction, cerebral hemorrhage and brain atrophy.
Cause
Cause
Leukoaraiosis (LA) is an abnormal change of white matter caused by various causes. This is basically the manifestation of cerebral arteriosclerosis. Serious or not, to see if there are symptoms of nervous system damage (such as movement disorders, sensory disturbances, dysphagia, motor coordination disorders, speech disorders, etc.). If you do not have the above symptoms, it will not be serious, but you should not take it lightly. Risk factors for cerebrovascular disease such as hypertension, diabetes, hyperlipidemia, and heart disease should be excluded.
Examine
an examination
Related inspection
Brain ultrasound examination of brain CT examination of brain MRI
The concept of white matter sparseness was first proposed by the Canadian neurologist Hachinski in 1987. It is commonly used to describe plaque or lamellae low-density changes in the periventricular and semi-oval center white matter abnormalities found during CT scans. On the MRI conventional T1WI, the low signal shadow of the above region and the high signal shadow on the T2WI are often bilaterally symmetric. The white matter sparse often occurs in the elderly, often with hypertension, diabetes, atherosclerosis, brain. Atrophy, cerebral infarction and other diseases coexist, also exist in normal elderly. Clinical manifestations include progressive dementia, gait instability, dyskinesia, transient ischemic attack (TIA) and other clinical signs and symptoms.
Diagnosis
Differential diagnosis
Demyelination of the white matter: Normal myelin, which is already mature, is destroyed, namely: demyelination of the white matter. It mainly includes: multiple sclerosis, progressive multifocal leukoencephalopathy, acute sporadic encephalomyelitis, subacute sclerosing panencephalitis, central pontine myelinolysis, corpus callosum degeneration, subcortical arteriosclerotic encephalopathy and concentricity Round hardening, etc.
Less white matter in the brain: Less white matter is a manifestation of malnutrition of the white matter.
The concept of white matter sparseness was first proposed by the Canadian neurologist Hachinski in 1987. It is commonly used to describe plaque or lamellae low-density changes in the periventricular and semi-oval center white matter abnormalities found during CT scans. On the MRI conventional T1WI, the low signal shadow of the above region and the high signal shadow on the T2WI are often bilaterally symmetric. The white matter sparse often occurs in the elderly, often with hypertension, diabetes, atherosclerosis, brain. Atrophy, cerebral infarction and other diseases coexist, also exist in normal elderly. Clinical manifestations include progressive dementia, gait instability, dyskinesia, transient ischemic attack (TIA) and other clinical signs and symptoms.
