Then, a technician uses dyes to stain parts of the cell. The thin slices are then floated in water so that they can be scooped up onto the slide.Īfter the slice is on the slide, the paraffin is dissolved from the tissue and water is added back. Once the paraffin block hardens, a technician cuts the specimen into extremely thin slices using a machine called a microtome. Paraffin blocks are durable and can be stored indefinitely. Afterward, the technician embeds the specimen in a larger block of paraffin. This machine removes water from the tissue and replaces it with paraffin wax. Then the technician places the fixed specimen in a machine. It causes the proteins in the cells to become hard so that they do not change. Formalin is the fixative used most often. The length of time the specimen stays in the fixative depends on its size. A fixative is a substance that keeps the specimen “fixed” so that it does not change. To create a permanent section, the technician places the specimen in a fixative for several hours. Here are the types of slides your pathologist or technician may prepare: The pathologist will then look at the sections under a microscope. Next, they place a thin cover called a cover slip on top to hold the specimen in place. The pathologist or technician places the sections on a glass slide. They are then stained with various dyes, which show the parts of the cells. During this process, the specimen is cut into thin slices, called histologic sections. Making a slideīefore examining the tissue with a microscope, the pathologist or a technician prepares a slide. The pathologist or a technician will prepare a part of the specimen for these tests. Other gene or protein tests may be needed to identify which treatments will work. Molecular tests find genes that might be active, changed, or missing. The sample may be needed for other tests based on what your doctor thinks the disease may be before the biopsy, called a suspected diagnosis. The label written by the doctor who took the specimen The gross description includes the following information: This is called a gross or macroscopic examination. This includes the color, size, and other features. A pathologist then describes how it looks to the naked eye. They label the container with your name and other details. The medical staff who perform your biopsy place the specimen in a container with a fluid to preserve it. The tissue sample removed during a biopsy is called a specimen. A pathologist is a doctor who specializes in reading laboratory tests and looking at cells, tissues, and organs to diagnose disease. After a biopsy, your health care team completes several steps before the pathologist makes a diagnosis. It is an important way to diagnose many different types of cancer. During a biopsy, your doctor removes a small amount of tissue for examination.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |