The cancer is largely different from other tumors, mainly due to histogenesis, treatment options and clinical manifestations.Treatment is largely the same specific due to the presence of the blood brain barrier, which is an obstacle to drugs to the brain tissues.
I must say that the risk of cancer of the brain susceptible to people of all ages, while the share of neuroepithelial tumors account for 60% of all brain tumors.The main reason for the suspicion of cancer of the brain is the occurrence of any neurological symptoms.
To date, the diagnosis of cancer of the brain used such research methods as MRI and CT.As diagnostic methods of this type of cancer can be divided into non-invasive, which include neyrooftalmologicheskoe, neurological, pathopsychological study, EEG, CT and ultrasound, as well as invasive methods, among which it is worth noting endoscopy, x-ray, scintigraphy, immunohistochemical diagnosis, studyCSF and needle biopsy.
Despite the rapid development of medicine and methods of diagnosi
decisive step in the diagnosis of brain cancer is magnetic resonance imaging, which allows you to create images from different angles, thus providing almost three-dimensional image.This method is used in modern medicine, if necessary, taking pictures of tumors at the early stage of development, as well as very small tumors, tumors of the brain stem, and tumors located near bone.
addition, this method is used during an operation for estimating the volume of tumors and to assess the response to therapy of cancer.
must say that due to the detail of the image, the method of MRI makes it possible to quite accurately determine the location of the localization of cancerous growths.
Computed Tomography Computed tomography
today is a rather convenient and modern method of diagnosis, allowing layers to survey the affected organs and tissues.I must say that this method is not as sensitive as MRI, but in some cases, CT allows to obtain important results.In some cases, more precise information is used contrasting.By this method, the physician as the result of receiving not only the location of cancerous tumors, but also in some cases, determines its type.Also computed tomography helps determine hemorrhage, edema of the brain and some other specific brain tumor state.Also computed tomography useful if necessary tracking and monitoring of disease recurrence after the malignant tumor response to treatment.
CT procedure is as follows: The patient is placed on a special table and slowly placed in a special chamber at the same time rotate around the patient tomography, X-ray emitting and transmitting done from different angles on a computer.Through this procedure, the doctor gets information about the exact size of the cancer, the extent of its sprouting in the adjacent tissue and the depth of its occurrence.
Danae procedure is completely painless for the patient and does not carry any discomfort.
Positron Emission Tomography, or PET
positron emission tomography is an addition to other procedures, most MRI, and to determine the re-appearing cancer cells or scar tissue, as well as dead cells after radiation therapy.The procedure consists in tracking the movement of sugar, pre-labeled radioactive tracer.
was not uncommon to combine the two procedures: CT and PET, known as PET-CT.
Other imaging techniques
In addition to these methods of examination for cancer of the brain there are a number of additional refinement of diagnostic methods.We should highlight the following:
- pneumography. This method consists in carrying out X-ray examination, together with the introduction of air instead of a contrast agent.This method can be divided into two types, it pnevmoventrikulografiyu and Pneumoencephalography.Air is introduced into the cavity of the cerebral ventricles, while in the case of a tumor mass to be visible pneumograms change of position as well as the size and shape of the ventricles.The nature of these changes will have to talk about the structure, size and direction of the growth of tumors.
- Angiography. This method is state of the X-ray examination of blood vessels.The procedure is as follows: to the vessel is introduced a special contrast material, and produced the picture.In that case, if there is a tumor in the brain, it will be seen displacement vessels and their branches.In addition, the unfavorable factor will be the discovery of new vessels.
- Neurosonography. This method of diagnosis of cancer of the brain used for children who are under the age of one year.We know that in adults ultrasonic waves do not pass through the skull, however, newborn children there are special expansion between the bones of the skull, skipping ultrasound.With this method, the study may identify displacement of brain structures and the presence of any tumors.