hyperplasia


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Related to hyperplasia: Endometrial hyperplasia, Hyperplasia of prostate

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 ?
The histological data of myelolipoma associated with primary hyperaldosteronism showed high plasma aldosterone, hypokalemia and suppressed plasma renin activity; the histological study showed a myelolipoma with hyperplasia of glomerulosa cells (Fig.
During surgical or interventional vascular procedures, the vulnerable lining of the vessel is injured, which leads to a local cascade of unwanted events, from initial inflammation to delayed neointimal hyperplasia (vessel scarring).
Setting the diagnosis of FEH is important to ensure differential diagnosis from other more serious conditions including inflammatory fibrous hyperplasia, inflammatory papillary hyperplasia, verruciform xanthoma, verrucous carcinoma, condyloma acuminatum, Cowden's Syndrome, Crohn's disease, and Amyloidosis.
The clinical presentation of hyperparathyroidism caused by lipohyperplasia is similar when caused by parathyroid hyperplasia.
In addition, the distinction between postatrophic hyperplasia and partial atrophy can be challenging at times, pushing some authors to lump these 2 categories together.
Microscopically all cases showed smooth muscle hyperplasia in a periductal, perivascular, interstitial or mixed pattern.
Genistein aglycone: a new therapeutic approach to reduce endometrial hyperplasia.
In the literature, several cases of adrenal myelolipomas associated with hyperaldosteronism, congenital adrenal hyperplasia and Cushing's syndrome were reported (3,4,5).
Atypical ductal hyperplasia is associated with the use of postmenopausal hormone treatment and its rates have decreased with the decline in use of this treatment," Menes added.
Kimura's disease and angiolymphoid hyperplasia with eosinophilia: clinical and histopathologic differences.
Urinary levels of two biomarkers--matrix metalloproteinase-9 (MMP-9) and a disintegrin and metalloprotease 12 (ADAM12)--appear to be independent predictors of the presence of breast atypical hyperplasia or lobular carcinoma in situ (LCIS), both of which are well established predictors of increased risk of breast cancer, explained Dr.