+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Gonadal dysgenesis and agenesis: anatomical expression

, : Gonadal dysgenesis and agenesis: anatomical expression. Bulletin de L'association des Anatomistes 75(228): 43-45

The term of gonadal dysgenesis designates generically any anatomical alteration due to abnormal embryological development of a gonad. The spectrum of these gonadal abnormalities is large and includes the following entities: The gonadal agenesis is characterized by a rudimentary streak gonad. It is composed of a dense, hyalinized fibrous tissue in which the germ cells or the germ structures are entirely missing. Usually the gonadal dysgenesis is a bilateral and symmetrical lesion. The gonadal dysgenesis is characterized by the presence of residual germ structures (follicles or tubules). These structures can be more or less easily identified within a dense fibrous tissue. The gonadal dysgenesis alterations are often unilateral and always asymmetrical. Usually the ipsilateral gonad is a testis. The ovotestis is characterized by the coexistence within the same gonad of differentiated germ structures. Most commonly, the gonadal dysgenesis are associated with sexual chromosome abnormalities and an increased risk of neoplastic change (gonadoblastoma). This risk can reach 30% in the asymmetrical gonadal dysgenesis.


PMID: 1782464

Other references

Beriain M.J.; Sanchez Monge J.M.; Villanueva R.; Bello J., 1989: A microscopical study of the structure of meat emulsions and its relationship to chemical additives. A microscopic study of the structure of meat emulsions prepared in the pilot plant have been investigated in relation to the presence of the following chemical additives: polyphosphate (a mixture of pyrophosphate, sodium tripolyphosphate and potas...

Suarez Plascencia C.; Nunez Cornu F.; Reyes Davila G.; Diaz Torres J., 2004: The activity of the Colima Volcano from 1999 to the 2003. Eos, Transactions, American Geophysical Union 85(47, Suppl

Dulzetto, F., 1928: Sul tessuto reticolare delle ghiandole del gozzo del Colombo. Monitore Zoologico Italiano, 39: 279-289

Katsumata, P.T.; Kastenberg, W.E., 1996: Fate and transport of methanol fuel from spills and leaks. This paper describes the results of a computer simulation that models the transport and fate of methanol introduced into surface water and ground water environments. Several different scenarios involving substantial (5,000 gallon) releases of meth...

Khashab, M.A.; Valeshabad, A.Kord.; Modayil, R.; Widmer, J.; Saxena, P.; Idrees, M.; Iqbal, S.; Kalloo, A.N.; Stavropoulos, S.N., 2014: EUS-guided biliary drainage by using a standardized approach for malignant biliary obstruction: rendezvous versus direct transluminal techniques (with videos). EUS-guided biliary drainage (EGBD) can be performed via direct transluminal or rendezvous techniques. It is unknown how both techniques compare in terms of efficacy and adverse events. To describe outcomes of EGBD performed by using a standardized...

Gagiev, G.I.; Martynov, S.A.; Smetanin, G.F., 1987: Effect of feed yeasts prepared using a different technology on physiological values and productivity in cattle. Enriching hydrolysed yeasts with urea increased their protein and amino acid content. In the production of yeast, tallow was used as a froth breaker instead of fish oil which was in short supply. The yeasts were given to young fattening bulls and...

Melikov, Y.F.; Jabarov, D.G., 1978: A study of land molluscs which are intermediate hosts of protostrongilid helminths in different vertical zones of Azerbaijan. Malacological Review 11.1-2: 83-84

Viernstein, K., 1961: On the problem of "Lambrinudi or posterior arthroereisis". Zeitschrift für Orthopadie und Ihre Grenzgebiete 95: 40-45

Moskowitz, D.B., 2000: Marketplace. Universities are telling their hospitals: goodbye, we don't want you any more. Medicine & Health 54(6): Suppl 1-2

Zadoo S.N., 1984: Cytogenetic observations on a monosomic in sesbania macrocarpa leguminosae. Experientia (Basel) 40(12): 1414