Hyperplasia
Hyperplasia (from ancient Greek ὑπέρ huper 'over' + πλάσις plasis 'formation'), or hypergenesis, is an enlargement of an organ or tissue caused by an increase in the amount of organic tissue that results from cell proliferation. It may lead to the gross enlargement of an organ, and the term is sometimes confused with benign neoplasia or benign tumor.
| Hyperplasia | |
|---|---|
| Whereas hypertrophy stems from an increase in cell size, hyperplasia results from an increase in cell number. | |
| Specialty | Pathology |
| Types | Benign prostatic hyperplasia, Hyperplasia of the breast(many more) |
| Diagnostic method | Biopsy |
| Treatment | Depends which type (see types) |
Hyperplasia is a common preneoplastic response to stimulus. Microscopically, cells resemble normal cells but are increased in numbers. Sometimes cells may also be increased in size (hypertrophy). Hyperplasia is different from hypertrophy in that the adaptive cell change in hypertrophy is an increase in the size of cells, whereas hyperplasia involves an increase in the number of cells.
| -plasia and -trophy |
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