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prostate |
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prostate /pros·tate/ (pros´tāt) a gland surrounding the bladder neck and urethra in the male; it contributes a secretion to the semen.prostat´ic
Prostate A gland in males below the bladder that surrounds the urethra. Enlargement of the prostate may cause problems in urination. Mentioned in: Antiarrhythmic Drugs, Antidepressants, Tricyclic, Finasteride, Fluoroquinolones, Peyronie's Disease
prostate [pros′tāt] Etymology: Gk, prostates, standing before a gland in men that surrounds the neck of the bladder and the proximal part of the urethra and produces a fluid that becomes part of semen. A firm structure normally about the size of a chestnut, the prostate is located in the pelvic cavity, below the inferior part of the symphysis pubis and ventral to the rectum, through which it can be felt, especially when it is enlarged. A depression on its cranial border accommodates the entry of the two ejaculatory ducts from the seminal vesicles. The prostate is composed of glandular and muscular tissue and contracts during ejaculation of seminal fluid. The prostatic secretion contains alkaline phosphatase, citric acid, prostate-specific antigen, and various proteolytic enzymes. prostatic, adj. prostate [pros´tāt] a gland in the male that surrounds the bladder neck and urethra; it consists of a median lobe and two lateral lobes and is made up partly of glandular matter (whose ducts empty into the prostatic portion of the urethra) and partly of muscular fibers that encircle the urethra. It contributes to the seminal fluid a secretion containing acid phosphatase, citric acid, and proteolytic enzymes, which account for the liquefaction of the coagulated semen. The rate of secretion increases greatly during sexual stimulation. Called also prostate gland. adj., adj prostat´ic. Disorders of the Prostate. Enlargement of the prostate (benign prostatic hypertrophy) is a common complaint in men over 50 years of age. Because of its position around the urethra, enlargement of the prostate quickly interferes with the normal passage of urine from the bladder. Urination becomes increasingly difficult, and the bladder never feels completely emptied. If the condition is left untreated, continued enlargement of the prostate eventually obstructs the urethra completely, and emergency measures become necessary to empty the bladder. If the prostate is markedly enlarged, chronic constipation may result. The usual remedy is prostatectomy. In men over 60 years of age, cancer of the prostate may occur. prostatitis is a relatively common inflammation of the prostate and may be acute or chronic. Surgery of the Prostate. Malignancy of the prostate and intractable prostatic infection are treated by prostatectomy, which is removal of the entire gland and its capsule. Benign prostatic hypertrophy can be treated by either a closed or open approach to the gland and removal of only the hyperplastic tissue (enucleation). The closed method of treatment is transurethral resection of the prostate (TURP); it is preferred when there is relatively minor enlargement of the gland, and the patient is elderly and a poor surgical risk. A resectoscope is inserted through the penis and along the urethra in a manner similar to that for cystoscopy. When the site of the hyperplasia is reached an electrical cutting loop is inserted, excess tissue is resected, and bleeders are cauterized. Other techniques that can be used with the transurethral approach are the cold punch technique, using a hollow sliding knife to scoop out tissue, and cryosurgery, in which the tissue is frozen and thereby destroyed. A TURP removes only the enlarged tissue; normal prostatic tissue and its outer capsule are left intact. The procedure is less traumatic, requires less time, and requires a shorter postoperative recovery period than any of the open methods of surgery. There are essentially three approaches to prostatic tissue that involve a surgical incision. In the suprapubic approach, an incision is made through the abdominal walls and the bladder, and the prostatic tissue is enucleated. In the retropubic approach, a low abdominal incision is made between the pubic arch and the bladder. The bladder is left intact but the prostatic capsule is incised and the glandular tissue removed. The perineal approach requires an incision between the anus and scrotum. The prostatic capsule is opened and the prostatic tissue removed. The aftereffects of surgery of the prostate vary according to the surgical procedure, the age of the patient, and other factors related to his general state of health. Almost all postprostatectomy patients experience a backflow of semen into the bladder (retrograde ejaculation) during sexual intercourse. The semen is thus eliminated in the urine rather than being expelled during ejaculation. Studies show that about 6 per cent of men who have had a transurethal resection experience impotence, though there is no known physiologic cause for failure to have an erection postoperatively. The incidence of impotence is slightly higher in men who have had suprapubic and retropubic surgical approaches to the prostate. Other consequences of prostatic surgery include urinary incontinence, which affects fewer than 1 per cent, urethral scarring and strictures, which affect from 3 to 15 per cent, and regrowth of prostatic tissue, which occurs in about 3 per cent of prostatectomy patients. The urethral strictures can usually be relieved by periodic enlargement of the urethral passage. In general, more than 90 per cent of postprostatectomy patients whose condition is not malignant have successful and uncomplicated surgery. ![]() Prostate. prostate, n a small doughnut-shaped gland in the pelvis that is a part of the male reproductive system and is responsible for lubricating the urethra with a thin, milky, alkaline fluid (semen), which increases the mobility of sperm and prevents infection.
prostate (pros´tāt), n a gland in men that surrounds the neck of the bladder and the urethra and produces a secretion that liquefies coagulated semen. prostate cancer,
n a slowly progressive adenocarcinoma of the prostate gland that affects an increasing proportion of males after the age of 50. prostate a gland in the male which surrounds the neck of the bladder and the urethra. It is a diffuse gland in rams and goat bucks, a lobed gland in stallions and dogs and a combination of lobed and diffuse in bulls and boars. The prostate consists of glandular tissue, the ducts from which empty into the prostatic portion of the urethra, and partly of muscular fibers which encircle the urethra. It contributes to the seminal fluid a secretion containing acid phosphatase, citric acid and proteolytic enzymes, which account for the liquefaction of the coagulated semen. The rate of secretion increases greatly during sexual stimulation. Patient discussion about prostate. Q. Would kidney stones affect a PSA reading? Would drinking lots of grapefruit juice affect a PSA reading? My husband's PSA reading jumped from a 4.2 to a 17 in @ 2 years' time. How can that be? This man takes all sorts of supplements and really watches his diet. He also takes good care of his body, and does NOT look or act 68. A. You should get your parathyroid gland checked out. Your calcium level might be causing the kidney stones. Q. Waking up to the bathroom I'm a 66 years old man and usually healthy, but in the last few months I find myself waking up several times during the night to urinate. It also takes the stream longer than usuall to end. I don't have pain during urinating, and other than that everything is more or less OK. Can that be related to the prostate? I heard that in adult men the prostate grows and obstruct the urine. Does that mean I have cancer in the prostate? Thank you! A. I uritane every hour on the hour. I feel the problem is my consumption of coffee is causing dehydration. Nevertheless, I should not have such frequency. I am 53 and get up at least 3 times every night. Sure, I can see my Urologist and he will tell me it is my prostate slight enlargement, and prescribe that drug one takes to have a full session, or, a more evasive treatment where he inserts this rod into my pennis to clear away obstruction? I don't know, perhaps there is something I can start, you know, a natural remedy? Your thoughts are welcomed. Oh,not to mention, another related symptom is the innability to sustain an errection for a decent period of time. Ok, your turn, let me know. Q. Rising PSA to 10 with two negative biospies? Expect cancer? 67 yrs old in good health otherwise. A. High values don't always mean it's cancer. At 67 years old, you're prostate is most likely enlarging, resulting in the higher PSA results. And after two negative biopsies, it sounds like you're in the clear. Like Brandon said though, keep up with your regular check ups. Read more or ask a question about prostateSource: http://www.northshore.org/healthresources/encyclopedia/encyclopedia.aspx?Version=Q3_08&DocumentHwid=hw5522&ViewHwid=hw5548 Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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