intracranial calcification
Introduction
Introduction Calcification is one of the most common signs in the brain, and calcification is a common sign of CT and MRI in the brain. The diseases associated with intracranial calcification include headache, intracranial hypotension headache; symptoms associated with intracranial calcification include dementia, calcification, and intracranial calcification.
Cause
Cause
The causes of intracranial calcification are complex and diverse, and clinical manifestations vary widely:
1. Physiological calcification: When the pineal calcification occurs in children under 10 years of age, it may be caused by tumors in the pineal region.
2. Pathological calcification: intracranial calcification caused by calcification of brain tumors.
3. Infectious diseases: such as TORCH syndrome, echinococcosis, metabolic diseases and endocrine diseases. Such as hypoparathyroidism is low.
Examine
an examination
Related inspection
Cerebral blood flow map EEG examination brain CT examination brain MRI examination brain function imaging
CT can clearly show intracranial calcification that is difficult to develop on plain films. CT scans a certain thickness of a certain part of the human body with X-ray beam. The detector receives the X-ray passing through the layer and converts it into visible light. It is converted into an electrical signal by photoelectric conversion, and then passed through an analog/digital converter (analog). /digital converter) converts to a number and enters the computer for processing. The image formation process is like dividing a selected layer into a plurality of cuboids of the same volume, called voxels. The scanned information is calculated to obtain an X-ray attenuation coefficient or an absorption coefficient of each voxel, and then arranged into a matrix, that is, a digital matrix.
Diagnosis
Differential diagnosis
1 Physiological calcification refers to the clinical absence of basal ganglia dysfunction, and there is no metabolic abnormality disease leading to calcification, and the age is over 60 years old (including cerebrovascular disease, dementia, etc.), the clinical significance of calcification is equivalent to pineal gland and Choroid plexus calcification.
2 secondary calcification, such as hypoparathyroidism, hypothyroidism, CO poisoning, Fahr's disease and other basal ganglia calcification, its clinical significance is pathological basal ganglia calcification, and most are associated with basal ganglia symptoms And the age is also lighter.
CT can clearly show intracranial calcification that is difficult to develop on plain films.
