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 ?
Diagnosis of focal nodular hyperplasia with MRI: multicenter retrospective study comparing gadobenate dimeglumine to gadoxetate disodium.
Takano, "Focal nodular hyperplasia of the liver: Direct evidence of circulatory disturbances," Journal of Gastroenterology and Hepatology, vol.
This article demonstrates the full spectrum of findings and features of focal nodular hyperplasia in different diagnostic imaging modalities.
Focal nodular hyperplasia of the liver: MR imaging and pathologic correlation in 37 patients.
Focal nodular hyperplasia is the second most common benign tumor of liver after hemangiomas and constitutes 4% of all primary hepatic tumors in pediatric population (2).
Focal nodular hyperplasia is considered a benign lesion that may be a regenerative phenomenon in response to local abnormal blood flow within the liver.
Hepatic adenoma and focal nodular hyperplasia: Differential diagnosis and treatment.
Historically, the HA-I subtype was referred to as telangiectatic focal nodular hyperplasia and was thought to belong to the FNH family.
Accurate differentiation of focal nodular hyperplasia from hepatic adenoma at gadobenate dimeglumine-enhanced MR imaging: prospective study.
Benign lesions include cysts, hemangiomas, focal nodular hyperplasia (FNH), and adenoma, while common malignant lesions include hepatocellular carcinoma (HCC), as well as hyper- and hypovascular metastases.
Telangiectatic hepatocellular adenomas, formerly termed telangiectatic focal nodular hyperplasia, are uncommon benign liver tumors that constitute 15.4% of lesions diagnosed as focal nodular hyperplasia and demonstrate a mean age at presentation of 38 years and a sex predilection with an 8:1 female to male ratio.