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Swiss Medical Forum = Forum Médical Suisse
Article . 2008 . Peer-reviewed
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Swiss Medical Forum = Forum Médical Suisse
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Syndrome des ovaires polykystiques

Authors: C De Geyter; S Strub; S Steinmann;

Syndrome des ovaires polykystiques

Abstract

hirsutisme, une acne et une seborrhee. La maladie se manifeste au niveau ovarien par une absence partielle ou complete d’ovulation (anovulation), si bien que les ovaires sont non seulement globalement tres augmentes de volume, mais ils presentent de plus une surface blanche, lisse et sans aucune cicatrice d’ovulation. Le terme de «polykystique» est trompeur, car il n’est en fait pas question de kystes au sens classique, mais plutot de petits follicules typiquement localises sous la surface des ovaires (fig. 1 x). Ces follicules ne sont pas de nature degenerative, comme on l’avait d’abord pense. Ils sont plutot potentiellement capables de repondre de facon exageree a l’adminis tration de FSH exogene. Les ovaires contiennent en leur centre un tissu conjonctif hyperplasique, correspondant a la theque et qui est le siege de la production excessive des androgenes responsables de la symptomatologie du SOPK. Au-dela du tableau clinique et des examens de laboratoire, l’image typique du SOPK a l’examen ultrasonographique endovaginal, meme si elle n’est pas pathognomonique, joue aujourd’hui un role essentiel dans le diagnostic (fig. 1). Chez certains praticiens, le diagnostic du SOPK se fonde malheureusement trop souvent exclusivement sur l’imagerie ultrasonographique des ovaires, ce qui conduit regulierement a des erreurs de diagnostic. L’appreciation anamnestique du cycle menstruel doit imperativement faire partie integrante de la demarche, car la presence d’un cycle ovulatoire normal constitue un critere d’exclusion. Un SOPK sans aucun signe d’hyper-andro genisme – que ce soit clinique ou biologique – n’est pas non plus concevable. Les examens de laboratoire comprennent une determination des taux seriques de testosterone totale, incluant aussi bien la fraction circulante libre, que celle liee au recepteur des androgenes. Environ 98% de la testosterone circulante sont lies aux proteines, en particulier a sa proteine de transport specifique, la SHBG. Comme les taux circulants de testosterone sont relativement faibles chez la femme, la determination de la fraction libre est tres imprecise. On recommande la determination de la testosterone totale dans le serum, car celle-ci est plus elevee et s’inscrit donc mieux dans l’intervalle mesurable par la methode,avec pour consequence des valeurs plus reproductibles. Introduction et definition du tableau clinique

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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