Malignant tumor
Malignant Tumor
A Malignant Tumor (pronunciation: muh-lig-nuhnt too-mur) is a type of cancer that originates from an uncontrolled division of cells in the body and has the potential to spread or metastasize to other parts of the body.
Etymology
The term "malignant" is derived from the Latin word "malignus" which means "bad kind" or "malicious", and "tumor" from the Latin "tumere" meaning "to swell". This term is used to describe a mass or growth that, unlike a benign tumor, invades surrounding tissues and can metastasize to distant organs.
Definition
A malignant tumor is a mass of cells that grows out of control and invades nearby tissues. It can also spread to other parts of the body through the blood and lymph systems. There are several types of malignant tumors. The type of tumor is determined by the cell in which it began and the nature of its growth. Malignant tumors can affect all body organs.
Related Terms
- Cancer: A group of diseases characterized by the uncontrolled growth and spread of abnormal cells.
- Metastasis: The process by which cancer spreads from the place at which it first arose as a primary tumor to distant locations in the body.
- Benign Tumor: A tumor that does not invade its surrounding tissue or spread around the body.
- Carcinoma: A type of cancer that starts in cells that make up the skin or the tissue lining organs.
- Sarcoma: A type of malignant tumor of connective or other non-epithelial tissue.
- Lymphoma: A type of cancer that begins in infection-fighting cells of the immune system, called lymphocytes.
External links
- Medical encyclopedia article on Malignant tumor
- Wikipedia's article - Malignant tumor
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