Tissue diagnostic is a type of histology that uses tissue from organs and tumors to diagnose diseases. This field of medicine is also known as histology, anatomic pathology, or cell and tissue diagnostics.
A tissue diagnostic is an examination of a suspicious tumor. It is an important part of diagnosing cancer. Tissue samples can be obtained by cutting through the skin or a soft tissue such as the lining of the intestines (endoscopy). Once removed, the tissue is sent to a laboratory or department of pathology to be examined by a histopathologist.
For examining the sample, a pathologist must first cut it into very small pieces. This process makes it possible to see the tissue under a microscope. To make the sample more solid, a substance called formalin is used. Once the tissue has been stabilized, it is then cut into sections that can be seen under the microscope.
Histopathologists then analyze the tissue samples to find out if they are malignant. This information is crucial for treating the patient, as well as for researchers to understand how different kinds of cancers respond to treatment.
Several methods are used to detect cancers in tissue samples, including immunohistochemistry and in-situ hybridisation stains. These stains allow the pathologist to find specific cells in the tissue, so they can identify the type of cancer and whether it has spread.
Another method is to take a small sample of tissue from the tumor, and then place it in a special dye. The dye then absorbs light and scatters it into a pattern that is visible under a microscope. The image is then shown to a doctor who can tell what kind of cancer the tissue sample represents and, if it is malignant.
A second way to detect cancer is by taking x-rays. This test creates a picture of the inside of the body, and it can be used to detect cancer in bone sarcomas. However, it is not as helpful in diagnosing soft-tissue sarcomas.
The most common method for diagnosing a cancer is by examining the tissue itself. Tissue is then removed and sent to a lab to be looked at under a microscope by a doctor who is trained in pathology.
Hoffmann La Roche declared the launch of next-generation VENTANA DP 600 slide scanner in June 2022. This scanner has high quality image of stained histology slides and is easy to use.
