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T. Objectif, Décrire les caractéristiques des carcinosarcomes endométriaux (CS) en IRM en séquences dynamiques injectées et de diffusion en comparaison aux carcinomes endométrioïdes (CE)

&. Matériels and . Méthodes, les patientes atteintes de CS et de CE avec IRM préopératoire étaient incluses. Les données morphologiques, perfusionnelles (rehaussement maximal relatif (SIRel) et taux de lavage (WIR)) et de diffusion étaient recueillies. L'hétérogénéité T2, la nécrose, l'hémorragie, l'intensité et l'hétérogénéité du rehaussement étaient recueilles par 2 lecteurs indépendants, Etude rétrospective issue de la base histopathologique de l'Institut Curie, 2003.

, La taille des CS était supérieure à celle des CE (82mm vs 38mm ; p<0,001) de même que la dilatation cavitaire (43mm vs 19mm ; p<0,001). Par rapport aux CE, les CS étaient plus souvent de signal T2 hétérogène, Résultats : 91 patientes (36 CS et 55 CE) étaient incluses

, Plus de CS étaient en hypersignal diffusion par rapport aux CE (100% vs 65% ; p=0,02) sans différence significative pour les chiffres d'ADC. Conclusion : Une volumineuse masse endométriale nécrotico-hémorragique se

. Mots-clés-:-carcinosarcome, E. Mmmt, I. Title, . Preoperative, . Of et al., Objective: To describe MRI characteristics of endometrial carcinosarcoma (CS) including enhanced and diffusion sequences

, patients with CS or EC who had preoperative MRI were included. Morphological, perfusion (maximum relative enhancement (SIRel) and wash-in rate (WIR)) and diffusion weighted data were analyzed. T2 signal heterogeneity, necrosis, hemorrhage, intensity and heterogeneity of enhancement were recorded by two radiologists. Inter-reader agreement was calculated using Cohen k statistics. Results: 91 patients (36 CS and 55 EC) were included. CS size was greater than EC (82mm vs 38mm; p<0,001) as for cavity dilatation, Materials & Methods: Retrospective study from Curie Institute histopathologic database, 2003.

, CS were more often in hypersignal diffusion in comparison with EC (100% vs 65%; p=0,02) but no statistical difference was found about ADC values. Conclusion: A bulky endometrial mass, necrotic and hemorrhagic, enhancing greater or equally to myometrium suggest the diagnosis of CS. Keywords: Carcinosarcoma, MMMT, endometrium, MRI Université Paris Descartes Faculté de Médecine Paris Descartes 15