Privire de ansamblu asupra tehnicilor şi semiologiei IRM şi uro-RM ale tractului urinar superior în carcinoamele uroteliale. Source: Romanian Journal of Urology.
Dec, Vol. Author s papillary urothelial carcinoma kidney Lupescu, Ioana G.
Abstract: The purpose of this article is to present the MRI technique and also the current and particular MR aspects of the upper urinary tract carcinomas. Specific MR techniques for suspected upper tract urothelial carcinomas are coronal T2- weighted hydrographic and coronal gadolinium-enhanced T1- weighted 3D-spoiled gradient-recalled echo in nephrographic and pyelographic phases.
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Upper tract urothelial carcinomas can be classified into papillary tumor, ţat tumor, and infiltrative tumor. Papillary lesions appear as filling defects of soft tissue signal on T2-weighted hydrographic MR urography and T1-weighted pyelographic phase images.
On nephrographic phase images, the lesions show moderately homogeneous enhancement. Flat tumors appear as a segmental area of diffuse thickening and enhancement of the affected urinary tract wall on nephrographic phase images. Infiltrative tumor appears as a large heterogeneously enhancing mass.
MRI, with MR urography sequences, represents actually an papillary urothelial carcinoma kidney papillary urothelial carcinoma kidney totally noninvasive imaging method to evaluate carcinomas of the upper urinary tract. English Copyright of Romanian Journal of Urology is the property of Romanian Journal of Urology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission.
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