hyperplasia

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hyperplasia

(hī'pərplā`zhə): see hypertrophyhypertrophy
, enlargement of a tissue or organ of the body resulting from an increase in the size of its cells. Such growth accompanies an increase in the functioning of the tissue. In normal physiology the growth in size of muscles (e.g.
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.

Hyperplasia

 

an increase in the number of structural elements of tissues or organs. In man and animals, hyperplasia is based on the intensified reproduction of cells and the formation of new structures. Hyperplasia is observed in various types of pathological growth of tissues (chronic productive inflammation and tumor), in regeneration, and in hypertrophy. Hyperplasia often carries with it compensating characters. In plants, it may be a local growth of tissues resulting from mitotic or amitotic cell division. It occurs with infection by destructive or pathogenic organisms, during trauma, and under the influence of growth stimulants, pesticides, and other preparations. The result of hyperplasia is the formation of galls, calluses, and warts.

hyperplasia

[‚hī·pər′plā·zhə]
(medicine)
Increase in cell number causing an increase in the size of a tissue or organ.
References in periodicals archive ?
Phenotypic and molecular characteristics of hyperplastic polyposis.
Some studies looked at the cell kinetics of hyperplastic polyps.
Among the tumour-like lesions, hyperplastic polyps were the commonest with an incidence of 66.
Conservative management of hyperplastic and multicentric nephroblastomatosis.
Coats' disease and persistent hyperplastic primary vitreous.
They found that it allows the brain to explore many solutions, but it can only be utilized if the network is hyperplastic.
18) no difference can be seen in the intensity of the infiltrate in lesions with atrophic or hyperplastic epithelium.
The mucosa over the lesion was whitish, hyperplastic with papillomatous surface (Figure 1).
Histopathologic examination showed a hyperplastic epidermis and noncaseating granulomatous infiltrates of lymphocytes, histiocytes, and multinucleate giant cells in the dermis (Figure, panel B).
Persistent fetal vasculature syndrome (PFVS), previously recognized as persistent hyperplastic primary vitreous (PHPV), is a rare congenital anomaly involving a persistence of the hyaloid vasculature within the orbit.
Prevalence of hyperplastic polyps was comparable between the two groups (27.
Examination findings include hyperplastic white lesions and hyperemia when Candida is involved.