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单词 cryptorchidism
释义

cryptorchidism

enUK

crypt·or·chi·dism

C5815100 (krĭp-tôr′kĭ-dĭz′əm) also crypt·or·chism (-kĭz′əm)n. A developmental defect marked by the failure of the testes to descend into the scrotum.
[From New Latin cryptorchidismus, from Greek kruptorkhos, having undescended testicles : crypt(o)- + orkhis, orkhid-, testicle.]
crypt·or′chid n.

cryp•tor•chi•dism

(krɪpˈtɔr kɪˌdɪz əm)

also cryp•tor•chism

(-kɪz əm)

n. failure of one or both testes to descend into the scrotum. [1880–85; < New Latin cryptorchidismus=crypt- crypto- + orchid- (< Greek orchid-; see orchid) + -ismus -ism] cryp•tor′chid, adj.

cryptorchidism

the failure of one or both testes to descend normally. — cryp-torchid, n., adj.See also: Sex
Thesaurus
Noun1.cryptorchidism - failure of one or both testes to move into the scrotum as the male fetus developscryptorchidy, cryptorchismundescended testicle, undescended testis - a testis that fails to move into the scrotum as the male fetus develops; "undescended testicles have an increased risk for cancer"monorchidism, monorchism - failure of one testes to descend into the scrotumabnormalcy, abnormality - an abnormal physical condition resulting from defective genes or developmental deficiencies
Translations

Cryptorchidism

enUK

cryptorchidism

[krip′tȯr·kə‚diz·əm] (medicine) cryptorchism

Cryptorchidism

 

in man and certain animals (horses, dogs), a developmental defect in which during intrauterine development a testis fails to descend to its normal position in the scrotum.

The formation of spermatozoa in an undescended testis may be diminished or absent. In man, unilateral cryptorchidism is usually caused by intra-abdominal adhesions, shortening of the ductus deferens, underdevelopment of the internal spermatic artery, or narrowness of the inguinal canal. Bilateral cryptorchidism is usually associated with disturbances of hormonal balance, insufficiency of gonadotropic hormones, or hereditary biological factors. Cryptorchidism is classified as abdominal or inguinal, according to whether the testis is retained in the abdomen or in the inguinal canal. Often the testis descends into the scrotum by the age of ten or 12. Hence, cryptorchidism is observed in only 0.3 percent of adults but in 2–3 percent of children and prepubescents.

Cryptorchidism is treated in children by hormone therapy (pituitary gonadotropic hormone and androgens), accelerating testicular development. Surgery is indicated if this treatment proves unsuccessful.

V. G. TSOMYK

cryptorchidism

enUK

cryptorchidism

 [krip-tor´kid-izm] failure of one or both of the testes to descend into the scrotum. As the unborn male child develops, the testes first appear in the abdomen at about the level of the kidneys. They develop at this site, and in approximately the seventh month of fetal life start to descend to the upper part of the groin. From there they move into the inguinal canal and then, normally, into the scrotum. In its descent, a testis may sometimes be halted in the abdomen or within the canal, becoming an undescended testis. An improperly developed testis may never leave the abdomen, and it may not produce the hormones that induce secondary sex characters. A testis lodged in the canal may well produce these secondary sex characters, but cannot produce spermatozoa. Cases in which both testes fail to descend are uncommon; usually only one is involved and the other produces sufficient numbers of spermatozoa.Treatment. Often the undescended testis can be brought down into the scrotum by medical treatment with the gonadotropic hormone, and for physical and psychologic reasons this method is preferred. Frequently, however, surgery (called orchiopexy) is required. This operation is not particularly serious and is usually successful. It is best performed before the patient is 5 to 7 years old, since operating at a later age may involve more risk to the cells that produce spermatozoa. In cryptorchidism, the testis is not in the scrotum, but may be found in the inguinal canal or in the abdominal cavity. From Damjanov, 2000.

cryp·tor·chi·dism

(krip-tōr'ki-dizm), Failure of one or both testes to descend. Synonym(s): cryptorchism

cryptorchidism

(krĭp-tôr′kĭ-dĭz′əm) also

cryptorchism

(-kĭz′əm)n. A developmental defect marked by the failure of the testes to descend into the scrotum.
crypt·or′chid n.

cryptorchidism

Undescended testicles A condition in which one or both testicles fail to move from the abdomen, where they develop before birth, into the scrotum; cryptorchidism uncorrected in early childhood is linked to azoospermia and ↑ testicular CA. Cf Anorchia.

cryp·tor·chism

(kript-ōr'kizm) Failure of one or both testes to descend.
Synonym(s): cryptorchidism.

cryptorchidism

Cryptorchism, undescended testicle. The testicles develop in the abdomen and a testicle that fails to descend before puberty remains permanently sterile. Such a testicle is also liable to develop cancer.

Cryptorchidism

Occurs when a boy is born with one or both testicles in the lower abdomen rather than the scrotum. Known also as undescended testicles, it is the primary risk factor for testicular cancer.Mentioned in: Testicular Cancer, Undescended Testes

cryptorchidism

enUK
  • noun

Synonyms for cryptorchidism

noun failure of one or both testes to move into the scrotum as the male fetus develops

Synonyms

  • cryptorchidy
  • cryptorchism

Related Words

  • undescended testicle
  • undescended testis
  • monorchidism
  • monorchism
  • abnormalcy
  • abnormality
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