Fiche publication
Date publication
janvier 2007
Auteurs
Membres identifiés du Cancéropôle Est :
Pr JACQMIN Didier
,
Pr LANG Hervé
,
Dr LINDNER Véronique
,
Pr ROY Catherine
Tous les auteurs :
Roy C, Sauer B, Lindner V, Lang H, Saussine C, Jacqmin D
Lien Pubmed
Résumé
The purpose of our study was to evaluate the role of MRI in demonstrating the precise nature of papillary renal tumors (P RCC) and its potential application to select patients for partial surgery. Ninety-seven tumors less than or equal to 3 cm in size [55 papillary renal cell carcinoma - 42 clear cell renal carcinoma (CC RCC)] were preoperatively evaluated by MRI. Imaging findings were assessed with a special focus on the aspect of the tumoral process. Correlations were performed with pathologic staging after surgery. At pathology, 92 tumors were established to be staged p T1 and 5 were p T3 ( 3 cases of CC RCC and 2 cases of P RCC). Ninety-four percent of papillary tumors exhibited low signal intensity with homogeneous pattern on T2-weighted images. All clear cell carcinoma were hyperintense and heterogeneous on T2-weighted sequence. Enhancement was lower and delayed in the papillary type in comparison with the clear cell type. MRI is accurate enough to predict the 'histologic' nature of papillary renal carcinoma. It is an additional argument to propose that the tumor can be removed by partial surgery.
Référence
Eur Radiol. 2007 Jan;17(1):193-200
