[The role of contrast-enhanced pulse inversion harmonic imaging (CEUS) and contrast-enhanced computed tomography (CECT) in the preoperative diagnosis of renal lesions].

Objective: The preoperative assessment of structural and functional changes in renal tumors using contrast-enhanced pulse inversion harmonic imaging (CEUS) and contrast-enhanced computed tomography (CECT).

Materials And Methods: All consecutive patients referred to two tertiary hospitals for surgery on suspicion of a malignant renal lesion, who had been examined under the predefined study protocol using CEUS and CECT, were prospectively included in the study. All renal lesions suspected of being malignant were subjected to histopathological examination.

Benign fibroepithelial polyp of the ureter.

Benign tumors of the ureter are rare and most often appear in the form of fibroepithelial polyps [1]. Fibroepithelial polyps represent from 2 to 6% of all benign tumors of the urinary tract [2]. The Authors report on two cases of fibroepithelial polyps of the ureter, which they treated between 1993-2009.