Bevezetés: A mastocytosis a hízósejtek (mastocyták) felszaporodásával járó ritka megbetegedés, amely a WHO-besorolás szerint cutan és szisztémás formákra osztható. A klinikai tünetekhez a hízósejtek szöveti infiltrációja és/vagy a mediátorfelszabadulás vezet. Célkitűzés: A szerzők a Semmelweis Egyetem Mastocytosis Hálózat részeként a jellegzetes bőrtüneteket mutató betegek kivizsgálásával szerzett tapasztalatainak összefoglalását tűzték ki célul. Módszer: Összesen 22 mastocytosisos felnőtt beteget vizsgáltak. A diagnózis felállítása bőrszövettani vizsgálat, csontvelővizsgálat, D816V szomatikus c-KIT-mutációanalízis alapján történt. Eredmények: Húsz beteg esetében urticaria pigmentosát, egy esetben teleangiectasia macularis eruptiva perstanst észleltek. A bőr szövettani vizsgálata minden esetben igazolta a klinikai diagnózist. Cristabiopsziával 9/12 esetben a csontvelői részvétel alapján indolens szisztémás mastocytosis diagnózisa volt felállítható. c-KIT-mutációt (D816V) egy betegben igazoltak mind a csontvelőben, mind a bőrben. A betegek a klinikum függvényében antihisztamin, PUVA, a c-kit-szekvenálás eredménye alapján alfa-interferon vagy tirozinkináz-gátló terápiában részesültek. Következtetések: A mastocytosis diagnózisának felállításában a bőrgyógyász szerepe kiemelten fontos, de a betegség kiterjedtségének tisztázására a csontvelő vizsgálatát minden esetben tanácsos elvégezni. Orv. Hetil., 2013, 154, 1469–1475.
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