So what is a biopsy? A biopsy is a lifetime capture of tissues from an organism and their subsequent microscopic research after painting by special dyes. Biopsies are one of the most widespread, and at a number of oncological diseases (at carcinoma treatment) even an obligatory method of research at an establishment of the diagnosis.
Why is a biopsy necessary? A biopsy is one of the most exact methods of research. The capture of tissues and their subsequent research under a microscope gives the doctor very important information not only about the disease, but also its variant, and also a degree of "destructions". Biopsy is not opposed to other methods of research. So, rontgenological, endoscopic, immunological methods of research supplement each other. Use of different methods allows speaking about reliability with greater accuracy than at use of one method.
Biopsy helps to find carcinoma prevention. The second essential circumstance defining the necessity of biopsy is the volume of operative intervention at oncological diseases (for carcinoma treatment). So, for example, at the cancer of rectum located in the bottom departments, abdomino-perineal extirpation is carried out, assuming removal of rectum and exteriorization of artificial anus. At uncertainty in the diagnosis it is impossible to carry out such an operation. If after operation it is found out that the malignant tumor was not in organism, naturally there will be a question about vain performance of traumatic interventions. The same concerns about breast cancer, stomach carcinoma, carcinoma of lung and other malignant tumors.
When is the biopsy carried out? A biopsy performance is required at suspicion on this or that disease which diagnosis cannot be established authentically by means of other methods of research. More often such diseases are oncological. Biopsy is also carried out at suspicion on a malignant tumor - for confirmation or exceptions of a cancer. Today biopsy is widely applied not only at carcinoma treatment, but also at diagnostics of nonneoplastic diseases. So, liver tissues research is frequent required for an establishment of hepatitis flow features.
What is the histological research? Histological research is a research of tissues under a microscope. By means of special solutions a slice of a tissue is dehydrated. After that a preparation is made with the help of paraffin. By means of very sharp knife or micro volume which can remove layers in some tenth shares of millimeter, cuts are carried out. And only after that make painting by various dyes, that allows to make visible cell and tissues elements under microscope. The expert (the pathologist, morphologist) draws the conclusion, which is necessarily considered in diagnostics.
What is the cytological research? Essentially, cytological research differs from histological because at this research not tissues research is carried out, but research of cells also. So, it is not always possible to take a slice of a tissue, and not always it is necessary.
Biopsy and surgery for carcinoma treatment should be followed one after the other.