Search results
Results From The WOW.Com Content Network
Cerebral atrophy is a common feature of many of the diseases that affect the brain. [ 1] Atrophy of any tissue means a decrement in the size of the cell, which can be due to progressive loss of cytoplasmic proteins. In brain tissue, atrophy describes a loss of neurons and the connections between them. Brain atrophy can be classified into two ...
Cerebellum (labeled bottom right) of the human brain. It is located above the brain stem, posterior to the brain. Cerebellar degeneration is a condition in which cerebellar cells, otherwise known as neurons, become damaged and progressively weaken in the cerebellum. [1] There are two types of cerebellar degeneration; paraneoplastic cerebellar ...
Ventriculomegaly is a brain condition that mainly occurs in the fetus when the lateral ventricles become dilated. The most common definition uses a width of the atrium of the lateral ventricle of greater than 10 mm. [ 1] This occurs in around 1% of pregnancies. [ 2] When this measurement is between 10 and 15 mm, the ventriculomegaly may be ...
Cerebrovascular disease includes a variety of medical conditions that affect the blood vessels of the brain and the cerebral circulation. Arteries supplying oxygen and nutrients to the brain are often damaged or deformed in these disorders. [ 2] The most common presentation of cerebrovascular disease is an ischemic stroke or mini-stroke and ...
Leukoaraiosis is a particular abnormal change in appearance of white matter near the lateral ventricles. It is often seen in aged individuals, but sometimes in young adults. [ 1 ][ 2 ] On MRI, leukoaraiosis changes appear as white matter hyperintensities (WMHs) in T2 FLAIR images. [ 3 ][ 4 ] On CT scans, leukoaraiosis appears as hypodense ...
Cerebral hypoxia is a form of hypoxia (reduced supply of oxygen ), specifically involving the brain; when the brain is completely deprived of oxygen, it is called cerebral anoxia. There are four categories of cerebral hypoxia; they are, in order of increasing severity: diffuse cerebral hypoxia (DCH), focal cerebral ischemia, cerebral infarction ...
About 15% of the blood volume is present in the arteries, 40% in the veins, and 45% in the nerve tissue and capillaries. There is a difference between the cerebral blood volume of gray and white matter. The cerebral blood volume value of gray matter is about 3.5 +/- 0.4 ml/100g, and the white matter is about 1.7 +/- 0.4 ml/100g.
Periventricular leukomalacia ( PVL) is a form of white-matter brain injury, characterized by the necrosis (more often coagulation) of white matter near the lateral ventricles. [ 1][ 2] It can affect newborns and (less commonly) fetuses; premature infants are at the greatest risk of neonatal encephalopathy which may lead to this condition.