Effects of resectoscope loop manipulation.

Background And Purpose: Urologic resectoscope loops often are manipulated to reposition the angle. The effects of these maneuvers on the efficiency and functionality of the loop have never been tested. Our goal was to evaluate the changes in tensile strength, conductivity, and dispersion of cautery effect resulting from such manipulation.

Carcinosarcoma of the ureter: report of a case with unusual histology and review of the literature.

Carcinosarcomas of the ureter are rare biphasic neoplasms, with distinct malignant epithelial and mesenchymal components. To the authors' knowledge there have been only 12 cases reported in the literature. Primary cartilaginous tumors of the ureter are also rare tumors.

Treatment of bilateral fibroepithelial polyps in a child.

Ureteral fibroepithelial polyps are extremely rare benign lesions composed of stroma with a surface of normal transitional epithelium. Traditionally, symptomatic polyps were treated with open exploration and segmental resection. We describe the first case of bilateral polyps in a child.