| RNV | radionuclide venography |
|---|---|
| GBG | glycine-rich beta-glycoprotein; gonadal steroid-binding globulin |
| GD | gastroduodenal; Gaucher disease; general diagnostics; general dispensary; gestational day; Gianotti ... |
| GDXY | XY gonadal dysgenesis |
| GSBG | gonadal steroid-binding globulin |
| CV | Contrast venography |
|---|---|
| MRV | Magnetic resonance venography |
| RNV | Radionuclide venography |
| GD | Gonadal dysgenesis |
| MGD | Mixed gonadal dysgenesis |
| venography | <investigation> A special X-ray of the veins that is performed by first injecting a radiopaque contrast (shows up on X-ray) into the vein in question and then taking a conventional X-ray. Used to demonstrate a blockage of a vein. Commonly used in the lower extremities to diagnose deep venous thrombosis. (27 Sep 1997) |
|---|---|
| vertebral venography | Radiographic demonstration of the epidural venous plexus by injection of contrast medium into the spinous process. (05 Mar 2000) |
| splenic portal venography | Introduction of radiopaque material into the spleen to obtain an X-ray visualization of the portal vessel of the portal circulation. Synonym: splenic portal venography. Origin: spleno-+ portography (05 Mar 2000) |
| transosseous venography | Radiographic demonstration of veins that drain a bone's marrow, by injection of contrast medium into the marrow at an appropriate point, as in vertebral venography or azygography by rib injection. (05 Mar 2000) |
| gonadal | <anatomy> Pertaining to a gonad. (18 Nov 1997) |
| gonadal agenesis | Congenital absence of essentially all gonadal tissue; the external genitalia and genital ducts are female, but if interstitial cells of Leydig are present, the external genitalia are commonly ambiguous and the genital ducts are female. See: gonadal dysgenesis. Compare: Klinefelter's syndrome, Turner's syndrome. Synonym: gonadal agenesis. (05 Mar 2000) |
| gonadal aplasia | Congenital absence of essentially all gonadal tissue; the external genitalia and genital ducts are female, but if interstitial cells of Leydig are present, the external genitalia are commonly ambiguous and the genital ducts are female. See: gonadal dysgenesis. Compare: Klinefelter's syndrome, Turner's syndrome. Synonym: gonadal agenesis. (05 Mar 2000) |
| gonadal cords | Columns of germinal and follicle cells penetrating centripetally into the embryonic ovarian or testicular cortex. (05 Mar 2000) |
| gonadal disorders | Disease of the ovaries and testes of any aetiology. (12 Dec 1998) |
| gonadal dose | The exposure dose to the male or female gonad, usually from incidental secondary radiation in diagnostic or therapeutic irradiation, or from whole-body irradiation. Synonym: gonadal dose. (05 Mar 2000) |
| gonadal dysgenesis | <embryology, genetics> A rare genetic disorder in women that is characterised by the absence of an X chromosome. This disorder inhibits normal sexual development and causes infertility. Features include webbing of the neck, short stature, retarded development of secondary sex characteristics, absence of menses, coarctation of the aorta, low hairline, eye abnormalities (drooping eyelids) and skeletal deformities. Treatment include oestrogen supplementation at puberty. Growth hormone replacement may be necessary in some cases. Cardiac surgery may be necessary to correct coarctation of the aorta. Incidence: 1 in 3,000 births. (10 Oct 1997) |
| gonadal dysgenesis, 46,xy | A syndrome characterised by "streak gonads" in a phenotypic female with a 46,xy karyotype. It is due to a mutation which inhibits the function of the y-borne determinant that would normally cause the indifferent embryonic gonad to differentiate into a testis. The streak gonad is incapable of ovulation or oestrogen secretion. The syndrome is sometimes called "pure gonadal dysgenesis," but this designation may also refer to the presence of streak gonads with a 46,xx karyotype. (12 Dec 1998) |
| gonadal dysgenesis, mixed | A syndrome of gonadal dysgenesis in which there is a testis on one side and a "streak gonad" on the other. The phenotype is generally male, but may be female since the individual is a mosaic. Various karyotypes have been identified, including 45,xo/47,xyy; 45,xo/46,xy; and 45,xo/46,xyo. (12 Dec 1998) |
| gonadal hormones | Hormones having oestrogenic (female sex hormones) or androgenic (male sex hormones) activity. (12 Dec 1998) |
| gonadal ridge | An elevation of thickened mesothelium and underlying mesenchyme on the ventromedial border of the embryonic mesonephros; the primordial germ cells become embedded in it, establishing it as the primordium of the testis or ovary. Synonym: genital ridge. (05 Mar 2000) |
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