Atypical hyperplasia
Atypical Hyperplasia
Atypical hyperplasia (pronounced: a-typ-i-cal hy-per-pla-sia) is a medical term used to describe an abnormal increase in the number of cells in an organ or tissue. This condition is not cancerous, but it can be a precursor to cancer, particularly breast cancer and endometrial cancer.
Etymology
The term "atypical hyperplasia" is derived from the Greek words "atypikos" meaning not typical, "hyper" meaning over, and "plasis" meaning formation. Thus, it refers to the over-formation of cells that are not typical or normal.
Types
There are two types of atypical hyperplasia:
1. Atypical ductal hyperplasia (ADH): This condition occurs when cells in the lining of a breast duct grow and multiply abnormally. It increases the risk of breast cancer.
2. Atypical lobular hyperplasia (ALH): This condition occurs when cells in the lobules of the breast grow and multiply abnormally. It also increases the risk of breast cancer.
Related Terms
- Hyperplasia: An increase in the number of cells in an organ or tissue. It is a common response to a stimulus and is not necessarily associated with cancer.
- Dysplasia: A term used to describe abnormal cells that are not cancerous but can become cancerous.
- Neoplasia: The process that results in the formation of a neoplasm (tumor), which can be benign or malignant.
- Carcinoma: A type of cancer that starts in cells that make up the skin or the tissue lining organs, such as the liver or kidneys.
See Also
External links
- Medical encyclopedia article on Atypical hyperplasia
- Wikipedia's article - Atypical hyperplasia
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