Résumé
Les adénomes hypophysaires développés aux dépens des cellules antéhypophysaires sont l’une des tumeurs intracrâniennes les plus fréquentes chez l’adulte. Leur incidence serait de 15,5/million/ an, avec une prévalence estimée à 0,02 voire 0,1 % selon certains auteurs (1, 2). Ces tumeurs sont classées d’après le type cellulaire d’origine en adénomes somatotropes, à prolactine, corticotrope, thyréotrope, gonadotrope ou non immunoréactif; ce dernier type est encore appelé non sécrétant ou non fonctionnel. Les tumeurs hypophysaires, en majorité non invasives, avec un développement limité à la selle turcique, sont considérées comme bénignes. Toutefois, 45 à 55 % de ces tumeurs, selon les critères utilisés, sont invasives et peuvent infiltrer le sinus sphénoïdal, les sinus caverneux, la dure-mère, l’os et/ou les tissus avoisinants (3). Certaines de ces tumeurs (10–20 % environ) ont une vitesse de croissance rapide et des signes histologiques particuliers, les faisant considérer comme des « adénomes bénins atypiques » ou «agressifs».
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Trouillas, J., Raverot, G., Jouanneau, E., Auger, C. (2010). Carcinome hypophysaire. In: Tumeurs malignes rares. Springer, Paris. https://doi.org/10.1007/978-2-287-72070-3_71
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DOI: https://doi.org/10.1007/978-2-287-72070-3_71
Publisher Name: Springer, Paris
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