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Topic: Hyperplasia


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In the News (Sat 20 Jul 19)

  
  Understanding Cancer Series: Cancer - National Cancer Institute
Nonetheless, cell structure and the orderly arrangement of cells within the tissue remain normal, and the process of hyperplasia is potentially reversible.
Hyperplasia can be a normal tissue response to an irritating stimulus.
An example of hyperplasia is a callus that may form on your hand when you first learn to swing a tennis racket or a golf club.
www.cancer.gov /cancertopics/understandingcancer/cancer/Slide19   (118 words)

  
  Hyperplasia - Wikipedia, the free encyclopedia
Hyperplasia (or "hypergenesis") is a general term for an increase in the number of the cells of an organ or tissue causing it to increase in size.
Hyperplasia may be harmless and occur as a result of increased demand on a particular tissue.
Hyperplasia may also be induced artifically by injecting hormones such as IGF-1 and human growth hormone Perhaps the most interesting and potent effect IGF has on the human body is its ability to cause hyperplasia, which is an actual splitting of cells.
en.wikipedia.org /wiki/Hyperplasia   (696 words)

  
 Hyperplasia
The dictionary defines hyperplasia as from the latin plasia meaning growth: A nontumorous increase in the number of cells in an organ or tissue with consequent enlargement of the affected part.
We have no ethical way of proving hyperplasia in vivo because the repeated removal of cells from the same subject on a recurring basis would be invasive and destructive of that individuals healthy muscle function.
We are left to prove myofibril hyperplasia indirectly.
www.pipeline.com /~bakti/MuscleMaker/hyper.html   (4512 words)

  
 Benign Prostatic Hyperplasia - Mens Health: health and medical information about Mens Health Issues
The doctor also may examine the urethra, prostate, and bladder using a cytoscope, an instrument that is inserted through the penis.
Benign prostatic hyperplasia is nonmalignant (noncancerous) enlargement of the prostate gland, a common occurrence in older men.
It is also known as benign prostatic hypertrophy and abbreviated as BPH and as nodular hyperplasia of the prostate.
www.medicinenet.com /benign_prostatic_hyperplasia/article.htm   (265 words)

  
 Nodular Regenerative Hyperplasia
DNRH was diagnosed in 0.52% of the liver biopsies and 0.72 of the autopsies.
Nodular regenerative hyperplasia of the liver was observed in 7 patients (5 with SLE, 1 with SSc and 1 with PAN).
Nodular regenerative hyperplasia of the liver is characterized grossly by diffusely nodular liver resembling micronodular cirrhosis.
www.thedoctorsdoctor.com /diseases/liver_nrh.htm   (5850 words)

  
 Congenital adrenal hyperplasia - Wikipedia, the free encyclopedia
Congenital adrenal hyperplasia (CAH) refers to any of several autosomal recessive diseases resulting from defects in steps of the synthesis of cortisol from cholesterol by the adrenal glands.
In all its forms, congenital adrenal hyperplasia due to 21-hydroxylase deficiency accounts for about 95% of diagnosed cases of CAH.
Congenital adrenal hyperplasia, which also dates to the first half of the century, has become the preferred term to reduce ambiguity and to emphasize the underlying pathophysiology of the disorders.
en.wikipedia.org /wiki/Congenital_adrenal_hyperplasia   (1718 words)

  
 The Analyst - Internet Health Report: Condition: Endometrial Hyperplasia
Hyperplasia usually develops in the presence of continuous estrogen stimulation unopposed by progesterone.
Hyperplasia without atypia rarely progresses to endometrial cancer while hyperplasia with atypia is a precancerous condition that may progress to overt malignancy.
Endometrial hyperplasia is currently the reason for 5% of all hysterectomies performed in the U.S. Conventional medicine uses progestins such as Provera, given continuously, either by mouth or long acting injections.
www.digitalnaturopath.com /cond/C600177.html   (721 words)

  
 Medcyclopaedia - Hyperplasia
Among the types of hyperplasia with effects on the musculoskeletal system, congenital adrenal hyperplasia, bone marrow hyperplasia and various types of skeletal hyperplasia are of importance.
Hyperplasia of the bone marrow is common in numerous types of anaemia.
Involvement of the spine is manifested by increased radiolucency of the vertebral bodies, prominent vertical trabeculae, and fish vertebrae or H vertebrae.
www.medcyclopaedia.com /library/topics/volume_iii_1/h/HYPERPLASIA.aspx   (408 words)

  
 Avian Goiter (Thyroid Hyperplasia or Dysplasia)
Thyroid hyperplasia is an enlargement of the thyroid glands due to abnormal proliferation of the epithelial cells lining the follicles.
Hyperplasia of the thyroid gland is a response to the body's need to produce more thyroxine.
The clinical signs of thyroid hyperplasia are due to abnormal function of the thyroid glands and marked increase in gland size.
edis.ifas.ufl.edu /VM029   (784 words)

  
 Hyperplasia: Facts and details from Encyclopedia Topic   (Site not responding. Last check: 2007-10-11)
Hyperplasia (or "hypergenesis") is a general term for an abnormal increase in the amount of the cells of an organ or tissue causing it to increase in size.
Congenital adrenal hyperplasia (cah) refers to any of several autosomal recessive diseases resulting from defects in steps of the synthesis of cortisol...
Oligomenorrhea is the medical term for infrequent menstrual periods in women of child-bearing age....
www.absoluteastronomy.com /encyclopedia/h/hy/hyperplasia.htm   (626 words)

  
 Types of Hyperplasia
The most current research indicates that two key factors are the most meaningful: 1) whether the hyperplasia is “simple” or “complex,” and 2) whether “atypical cells” (also called “atypia”) are present in the endometrium.
In complex hyperplasia without atypia, the individual cells may be enlarged, but, as in simple hyperplasia, the internal makeup of the cells is considered to be normal.
Even when hyperplasia does lead to cancer, there is good news, which is that endometrial cancer is slow to grow and spread, and almost always shows itself early as non-menstrual bleeding, which is also the chief symptom of hyperplasia.
www.baymoon.com /~gyncancer/library/weekly/aa110600b.htm   (753 words)

  
 Spectrum of Endometrial Hyperplasia and Its Mimics on Saline Hysterosonography -- Jorizzo et al. 179 (2): 385 -- ...
endometrial hyperplasia with atypia, from 8 to 20 mm; and in
The behavior of endometrial hyperplasia: a long-term study of "untreated" hyperplasia in 170 patients.
The prognostic and therapeutic implications of cytologic atypia in patients with endometrial hyperplasia.
www.ajronline.org /cgi/content/full/179/2/385   (1560 words)

  
 CSG: Health Education Documents/Benign Prostatic Hyperplasia   (Site not responding. Last check: 2007-10-11)
Benign prostatic hyperplasia is a term for non-cancerous enlargement of the prostate, the walnut-size gland located at the base of the urinary bladder in men.
The role of the prostate is to produce fluids found in semen, and as such the gland is closely associated with the urethra, the duct through which urine (and semen) flows for discharge at the glans of the penis.
BPH is a gradually developing problem, and to an extent the need to treat it is a matter of choice for each man. Whether or when to treat depends to a large degree on your level of discomfort and dissatisfaction with your situation.
www.ctsurgical.com /education/hyperplasia.stm   (3711 words)

  
 Endometrial Hyperplasia
Endometrial hyperplasia is a common disorder that is now observed with increasing frequency in women treated with hormonal replacement therapy or with tamoxifen.
Accuracy of outpatient endometrial biopsy in the diagnosis of endometrial hyperplasia.
Among 27 remaining patients with atypical hyperplasia, eight underwent hysterectomy, two were treated with ovulation induction, and 17 were treated with progestins, of whom 16 had regression of their lesions, and one had a persistent lesion.
www.thedoctorsdoctor.com /diseases/endometrialhyperplasia.htm   (6068 words)

  
 Benign prostatic hyperplasia (BPH)
Benign prostatic hyperplasia (BPH), also known as benign prostatic hypertrophy, is a noncancerous enlargement of the prostate gland that occurs in almost all men as they age.
Many men confuse benign prostatic hyperplasia with prostate cancer believing it is the beginning stages of prostate cancer.
- Benign prostatic hyperplasia (BPH), also known as benign prostatic hypertrophy, is a noncancerous enlargement of the prostate gland that occurs in almost all men as they age.
mens-health.health-cares.net /benign-prostatic-hyperplasia.php   (864 words)

  
 Prostate
The mechanism for hyperplasia may be related to accumulation of dihydrotestosterone in the prostate, which then binds to nuclear hormone receptors which then trigger growth.
Hyperplasia begins in the region of the veru-montanum, in the inner zone of the prostate, and extends to involve lateral lobes.
Nodular hyperplasia is NOT a precursor to carcinoma.
www-medlib.med.utah.edu /WebPath/TUTORIAL/PROSTATE/PROSTATE.html   (1584 words)

  
 Parathyroid Hyperplasia
Parathyroid hyperplasia is defined as an absolute increase in the mass of the parenchymal cells of the parathyroid gland.
Parathyroid hyperplasia of all four glands was found to be the cause of primary hyperparathyroidism in 85 of 557 cases seen at the Massachusetts General Hospital between 1930 and 1973.
Primary hyperparathyroidism (HPT) is caused by a parathyroid adenoma, hyperplasia or carcinoma.
www.thedoctorsdoctor.com /diseases/parathyroid_hyperplasia.htm   (1879 words)

  
 Nutrition & Men's Health   (Site not responding. Last check: 2007-10-11)
Benign prostatic hyperplasia is thought to be caused by an accumulation of testosterone in the prostate.
Interestingly, males born with a genetic defect that impairs their ability to make the 5-alpha-reductase enzyme (hence, no DHT formation is possible) are virtually immune to prostate cancer development as it rarely occurs in these individuals or in eunuchs.
Carrila E et al.: Binding of permixon, a new treatment for prostatic benign hyperplasia, to the cytosolic androgen receptor in the rat prostate.
www.nutra-education.com /html/nutrition___men_s_health.html   (2306 words)

  
 Focal epithelial hyperplasia
Focal epithelial hyperplasia is essentially an oral infection with the wart-producing papillomavirus, although from a different family of viruses.
Focal epithelial hyperplasia is somewhat different from other HPV infections in that it is able to produce extreme acanthosis or hyperplasia of the prickle cell layer of the epithelium with minimal production of surface projections or induction of connective tissue proliferation.
The sessile nature of focal epithelial hyperplasia also serves to separate it from the former two lesions, although this is not a guaranteed distinction.
www.maxillofacialcenter.com /BondBook/mucosa/feh.html   (769 words)

  
 Emedicine Search Results for Hyperplasia
Sebaceous Hyperplasia - Sebaceous hyperplasia is a common, benign condition of sebaceous glands in adults of middle age or older...
Prostate Hyperplasia, Benign - Benign prostatic hyperplasia (BPH) is a noncancerous enlargement of the prostate gland that may r...
Angiolymphoid Hyperplasia with Eosinophilia - Angiolymphoid hyperplasia with eosinophilia (ALHE) is an uncommon idiopathic condi...
www.emedicine.com /cgi-bin/foxweb.exe/searchengine@/em/searchengine?boolean=and&book=all&maxhits=100&HiddenURL=&query=Hyperplasia   (378 words)

  
 Endometrial Hyperplasia
Hyperplasia means "overgrowth," so endometrial hyperplasia means "overgrowth of, or too much, endometrium." Unless the lining of the uterus sheds regularly, tissues and glands will build up and may later become a breeding ground for abnormal cells.
Cystic glandular hyperplasia (also called cystic endometrial hyperplasia, or mild hyperplasia) means that you have too much lining but your endometrial cells are still normal, which is good news.
Although you might be more inclined to accept a recommendation of a hysterectomy for severe hyperplasia, this procedure is not necessary unless the hyperplasia persists after the lining is removed via progesterone supplements or D and C. In younger women particularly, severe hyperplasia can be reversed with hormonal therapy.
www.webmd.com /content/article/4/1680_51528.htm?lastselectedguid=   (1030 words)

  
 Testicular Leydig's Cell Hyperplasia: MR Imaging and Sonographic Findings -- Carucci et al. 180 (2): 501 -- American ...
hyperplasia is not known to be a preneoplastic lesion [3, 8].
Adult patients with Leydig's cell hyperplasia are usually asymptomatic [2].
Leydig cell tumor and metachronous Leydig cell hyperplasia: a case associated with gynecomastia and elevated urinary estrogens.
www.ajronline.org /cgi/content/full/180/2/501   (1126 words)

  
 eMedicine - Congenital Adrenal Hyperplasia : Article by Thomas A Wilson, MD   (Site not responding. Last check: 2007-10-11)
The phenotype can vary from clinically unapparent disease (occult or cryptic adrenal hyperplasia) to a mild form of disease, which is expressed in adolescence or adulthood (nonclassic adrenal hyperplasia), to severe disease resulting in adrenal insufficiency in infancy, with or without virilization and salt wasting (classic adrenal hyperplasia).
The goal of therapy of adrenal hyperplasia is the replacement of glucocorticoid and mineralocorticoid to prevent signs of adrenal insufficiency and to prevent the accumulation of precursor hormones that cause virilization.
Gender identity in females with virilizing adrenal hyperplasia is usually female provided the female gender assignment is made early in life, adequate medical and surgical support are provided, and the family and eventually the patient herself are provided with adequate education to understand the disease.
www.emedicine.com /ped/topic48.htm   (6364 words)

  
 Prostate : Hyperplasia | Webpathology.cfm   (Site not responding. Last check: 2007-10-11)
Remarks: Atypical adenomatous hyperplasia (adenosis) - when seen in a needle biopsy - is one of the most challenging benign mimics of cancer.
Prostatic stromal hyperplasia with atypia: A study of 11 cases.
Remarks: Hyperplasia of the median lobe of the prostate produces a polypoid mass that protrudes in the bladder lumen.
www.webpathology.com /case.cfm?case=18   (311 words)

  
 MedlinePlus Medical Encyclopedia: Congenital adrenal hyperplasia
Congenital adrenal hyperplasia refers to a group of inherited disorders relating to the adrenal glands, characterized by a deficiency in the hormones cortisol and aldosterone and an overproduction of androgen.
Some forms of congenital adrenal hyperplasia are more severe and cause adrenal crisis in the newborn due to salt wasting.
Diagnosis is made in the first trimester by chorionic villus sampling and in the second trimester by measuring hormones such as 17-hydroxyprogesterone in the amniotic fluid.
www.nlm.nih.gov /medlineplus/ency/article/000411.htm   (901 words)

  
 Parathyroid hyperplasia   (Site not responding. Last check: 2007-10-11)
Parathyroid hyperplasia involves enlargement of all four parathyroid glands, which are located in the neck and control calcium metabolism.
Parathyroid hyperplasia causes about 15% of cases of hyperparathyroidism, which leads to elevated levels of calcium in the blood (hypercalcemia).
Parathyroid hyperplasia may occur sporadically (without a family history) or as part of three familial (inherited) syndromes: multiple endocrine neoplasia 1 (MEN 1) and MEN 2A and isolated familial hyperparathyroidism.
www.ehendrick.org /healthy/001189.htm   (253 words)

  
 Sebaceous Hyperplasia Fordyce’s Condition
Sebaceous hyperplasia is a skin condition in which a person develops small, yellowish growths, usually on the face.
Neither sebaceous hyperplasia or Fordyce’s condition is contagious.
If the lesions are becoming unsightly and you really feel something needs to be done, a powerful, expensive drug named Accutane will reverse sebaceous hyperplasia, but you will develop new lesions after you stop the medication unless you also use tretinoin cream regularly.
www.skinsite.com /info_sebaceous_hyperplasia.htm   (158 words)

  
 eMedicine - Sebaceous Hyperplasia : Article by Daniel Hogan, MD   (Site not responding. Last check: 2007-10-11)
Background: Sebaceous hyperplasia is a common, benign condition of sebaceous glands in adults of middle age or older.
Sebaceous hyperplasia has also been linked to long-term immunosuppression in posttransplantation patients taking cyclosporin A. Although the mechanism for this reaction is poorly understood, this adverse effect is thought to be specific for the highly lipophilic cyclosporin A; other immunosuppressants have not been associated with an increased prevalence of sebaceous hyperplasia.
Causes: Sebaceous hyperplasia is thought to be caused by a decrease in the circulating levels of androgen associated with aging.
www.emedicine.com /derm/topic395.htm   (2537 words)

  
 Benign Prostatic Hyperplasia- Health Encyclopedia and Reference
The prostate is a male gland that secretes the fluid (a part of the semen) which carries sperm from the testicles during ejaculation.
It surrounds the first inch of the urethra (the tube through which urine and sperm exit the body).
Usually, the prostate gland starts to enlarge after middle age.When the prostate becomes enlarged, the condition is called benign prostatic hyperplasia (BPH), or benign prostatic hypertrophy.
www.drkoop.com /encyclopedia/43/169.html   (2095 words)

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