Valeur de lexamen extemporane en pathologie thyrodienne

OBJECTIF : Etudier la valeur de l’examen extemporane dans la pathologie thyroidienne et identifier ses limites MATERIELS ET METHODES : Notre etude est retrospective incluant 800 examens extemporanes realises sur des pieces de resection thyroidienne colliges dans notre service sur une periode de 12 ans (2000-2011).Les resultats ont ete compares a ceux de l’examen anatomopathologique definitif. RESULTATS : Les resultats etaient concordants dans 96,5%, discordants dans 3,5 %. La sensibilite de l’examen extemporane tous types confondus etait de 78 % et la specificite de 100 % CONCLUSION : Notre etude a montre une specificite parfaite de l’examen extemporane cependant l’interpretation difficile des lesions thyroidiennes d’architecture vesiculaire expliquent une sensibilite de 78 %. Mots Cles : Thyroidectomie, examen extemporan OBJECTIVE : To assess the value of frozen-section examination in thyroid surgery and evaluate its limitations PATIENTS AND METHODES : This retrospective study examined the results of 800 frozen-sections of thyroid specimens analysed over the 12 –year period (2000-2011). Their results were compared with definitive anatomo-pathological examination RESULTS :Frozen-section diagnosis was concordant with subsequent histopathological examination in 96,5% ,discordant in 3,5%. The global specificity of frozen section analysis for all histological subtypes was 100 % and its sensitivity was 78 %. CONCLUSION : This study shows the good specificity of frozen section .Discordances between frozen-section and definitive diagnosis was associated with microfllicular lesions wich explain the sensibility of 78% Key Words: Thyroid surgery, frozen section examination