Excessive enlargement of a tissue or structure due to an increase in the number of cells.
Increase in the number of cells produced in an organ or body tissues.
Growth in a tissue or organ through an increase in the number of cells.
Over proliferation of normal cells within a normal tissue structure.
Abnormal multiplication of the number of cells resulting from an increased rate of cellular division.
Precancerous change in the lungs characterized by an increase in the number of layers of basal cells that underlie the inner surface of the bronchial tubes.
A condition in which there is an increase in the number of cells in an organ.
Excessive formation of cells (compare aplasia; hypoplasia).
An abnormal increase in the number of normal cells in an organ that results in the organ becoming larger than normal. Hyperplasia is not necessarily a cancerous condition, although it may sometimes become cancerous.
The increased production and growth of normal cells in a tissue or organ. The affected part becomes larger but retains its normal form. During pregnancy the breasts grow in this manner.
Hyperplasia means an abnormal increase in the number of cells in a tissue.
Excessive proliferation of normal cells in the normal tissue arrangement of an organ.
In certain circumstances, a biological tissue may undergo an abnormal enlargement process due to the uncontrolled and excessive multiplication of its cellular constituents. This type of growth can be observed in a phenomenon known as “crown gall,” which is often induced by the bacterium Agrobacterium tumefaciens.
Anomalous proliferation of typical cells within a specific tissue results in the abnormal escalation of cell numbers. This phenomenon pertains to an excessive multiplication of normal cells in the given tissue.
Hyperplasia refers to the enlargement of an organ or tissue caused by an increase in the number of its cells. Unlike tumor cells, these new cells are normal in hyperplasia. This condition is typically a result of hormonal stimulation. It can occur as a normal physiological response, like the enlargement of breast tissue during pregnancy, or it may indicate an underlying disorder.
The enlargement of a tissue or organ because of a rise in the number of its cells.