Laboratory Pathohistological

A pathohistological laboratory is a laboratory within the pathology department, designed to conduct histological and histochemical studies of tissues and organs.

In the pathohistology laboratory, a microscopic examination of tissues and cells taken during a biopsy or obtained after an autopsy and collection of material at autopsy is carried out. The purpose of such a study is to establish the nature of the pathological process, its localization, prevalence and other important diagnostic signs.

To do this, fixation, wiring, embedding in paraffin, and preparation of histological sections are carried out in the laboratory. This is followed by staining the sections with various dyes and their microscopic analysis. Histochemical reactions are also carried out to identify certain substances and structures.

The results of pathohistological examination make it possible to clarify the diagnosis, determine treatment tactics, and provide important information for understanding the pathogenesis of the disease. Therefore, the pathohistology laboratory plays a key role in the work of pathology departments of medical institutions.

A pathological laboratory (PAL) or histological laboratory is a part of a laboratory that is engaged in obtaining and processing biological material during the study of pathological processes - neoplasms in tissues or organs, tissue damage. The results of such studies are called histological. Histological studies of tumor-affected tissues are helpful in making a diagnosis, allowing the correct diagnosis to be made or the need for surgical treatment to be determined.

The PAL includes:

- Cytology department, where smears are analyzed