Romanowsky stain
Romanowsky stain
Romanowsky stain (pronunciation: roh-muh-now-skee stayn) is a type of histological stain used in cytology and hematology to differentiate cells in thin sections of tissues. It is named after the Russian scientist Dmitri Leonidovich Romanowsky, who developed the stain in the late 19th century.
Etymology
The term "Romanowsky stain" is derived from the name of its inventor, Dmitri Leonidovich Romanowsky. The word "stain" comes from the Old English word "stainan", which means to color or dye.
Description
Romanowsky stain is a mixture of methylene blue and eosin. It is used to stain thin sections of tissue in order to visualize the different components of the cells. The stain colors the nucleus of the cell blue and the cytoplasm pink, allowing for easy differentiation between the two.
Usage
In hematology, Romanowsky stain is used to stain blood smears for the identification of blood cells. It is also used in cytology for the staining of smear tests and other cytological preparations.
In histopathology, Romanowsky stain is used to stain tissue sections for the identification of cellular components and structures. It is particularly useful in the identification of parasites, bacteria, and fungi.
Related Terms
- Histology: The study of the microscopic structure of tissues.
- Cytology: The study of cells.
- Hematology: The study of blood and blood-forming tissues.
- Methylene blue: A chemical compound used in staining.
- Eosin: A fluorescent red dye used in staining.
- Nucleus (cell): The central part of a cell that contains the genetic material.
- Cytoplasm: The material within a cell, excluding the nucleus.
- Blood smear: A method used to look at blood cells under a microscope.
- Smear test: A test that checks for changes in the cells of the cervix.
- Histopathology: The study of changes in tissues caused by disease.
- Parasites: Organisms that live on or in a host organism and get their food from or at the expense of their host.
- Bacteria: Single-celled microorganisms.
- Fungi: A group of organisms that includes yeasts, molds, and mushrooms.
External links
- Medical encyclopedia article on Romanowsky stain
- Wikipedia's article - Romanowsky stain
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