azoospermia


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azoospermia

 [a″zo-o-sper´me-ah]
lack of live spermatozoa in the semen; see also aspermatogenesis.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

a·zo·o·sper·mi·a

(ā'zō-ō-sper'mē-ă),
Absence of living spermatozoa in the semen; failure of spermatogenesis.
See also: aspermia.
[G. a- priv. + zōon, animal, + sperma, seed]
Farlex Partner Medical Dictionary © Farlex 2012

azoospermia

Complete absence of sperm in the semen, with resultant infertility.

Azoospermia
• Pretesticular—due to absence of FSH secondary to hypopituitarism, hyperprolactinemia and FSH suppression by exogenous androgens.
• Testicular—The most common cause, in which the testes are atrophic, typically due to cryptorchidism or Sertoli cell-only syndrome, but also orchiditis, cancer, surgery, trauma or radiation.
• Post-testicular—due to vasectomy, agenesis of vas deferens or ejaculatory dysfunction.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

azoospermia

Urology Complete absence of sperm in the semen, with resultant infertility. See Oligospermia.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

a·zo·o·sper·mi·a

(ā'zō-ō-spĕr'mē-ă)
Absence of living sperms in the semen; failure of spermatogenesis.
[G. a- priv. + zōon, animal, + sperma, seed]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

azoospermia

Absence of spermatozoa from the seminal fluid, a cause of male sterility. Sperms may still be being produced in the testes.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
References in periodicals archive ?
Currently, there is no known medical or surgical treatment for idiopathic azoospermia. Men with azoospermia due to spermatogenic failure can only have children with the help of surgical methods and assisted re-productive techniques.
Theoretically, the treatment of hormonally active tumors, which may be inhibiting HPG function and thereby causing oligospermia or azoospermia, could restore testicular function and improve fertility (Kenney et al., 2012; Schilsky, 1989).
It is less likely to work for men with the more severe form of the condition; non-obstructive azoospermia, in which little or no sperm is produced.
Patients with ring Y chromosome can present a wide spectrum of sex phenotypes, including Turner syndrome, ambiguous genitalia, short stature, infertility because of azoospermia, oligospermia and high gonadotropins.
While we do not recommend treating infertile men with oral testosterone undecanoate, these studies do indicate that it is highly unlikely that the short course of oral testosterone used by this man lead to prolonged azoospermia.
The 2R/2R genotype has the highest frequency in total infertile, azoospermic, severe oligozoospermic, and control groups (38.78, 28.65, and 26.45 versus 31.57 percent, resp.), in which differences between total and azoospermia patients compared to controls were statistically significant (p = 0.014, p = 0.011, resp.).
In many azoospermic men, particularly men with obstructive azoospermia (OA), testicular sperm retrieval is performed as a randomly located open biopsy using a scalpel [1, 2]; testicular sperm aspiration (TESA) using a needle, gauge 19-26 [3, 4]; or testicular sperm extraction (TESE) using a TruCut "gun" needle, gauge 14 or 18 [5, 6].
reported on the successful sperm extraction from men with non-obstructive azoospermia and the application of intracytoplasmatic sperm injection (ICSI) method [29].
The complete removal of this region deletes all DAZ (deleted in azoospermia) gene copies and 21 other transcription units.
A similar technique is given to a male partner who is diagnosed with obstructive azoospermia, or blockage in sperm production.
Azoospermia: Differential diagnosis of azoospermia is based on physical examination of the male, testicular biopsy, endocrine evaluation and genetic screening.