Benign tumors
Benign Tumors
Benign tumors (pronunciation: /bɪˈnaɪn ˈtjuːmər/) are non-cancerous growths in the body that do not spread to other parts of the body. They are typically not life-threatening unless they grow in critical areas such as the brain.
Etymology
The term "benign" comes from the Latin word "benignus" which means "kind, good", while "tumor" is derived from the Latin word "tumere" which means "to swell".
Definition
A benign tumor is a mass of cells (tumor) that lacks the ability to invade neighboring tissue or metastasize. These do not spread into, or invade, nearby tissues; however, they can sometimes be quite large. When removed, benign tumors usually don’t grow back, whereas malignant tumors sometimes do.
Types of Benign Tumors
There are many types of benign tumors, some of which include:
- Adenomas: These tumors often grow in the thin layer of tissue that covers glands, organs, and other internal structures.
- Fibroids: These are benign tumors that grow in the muscle tissue of the uterus.
- Hemangiomas: These are benign tumors that are seen most commonly in the skin as red birthmarks.
- Lipomas: These are benign fatty tumors that can appear anywhere in the body.
Related Terms
- Malignant Tumors: These are cancerous tumors that can invade nearby tissues and spread to other parts of the body.
- Metastasis: This is the process by which cancer spreads from the place at which it first arose as a primary tumor to distant locations in the body.
- Carcinoma: This is a type of cancer that starts in cells that make up the skin or the tissue lining organs, such as the liver or kidneys.
- Sarcoma: A type of malignant tumor of connective or other non-epithelial tissue.
External links
- Medical encyclopedia article on Benign tumors
- Wikipedia's article - Benign tumors
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