PMC6225073_01
Intravenous pyelogram showing filling defects (arrow) in right proximal ureter corresponding to fibroepithelial polyps. Distal ureter is not still observed at fifth hour after administration of contrast material.
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However, intravenous urography (IVU) detected filling defects in the right proximal ureter (Fig. 1).
Three-dimensional MR urography with T2-weighted images; filling defects in right proximal ureter (bold arrow), causing ureteral obstruction and moderate pyelocaliceal upstream dilation (thin arrow).
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MRI detected thickening of the wall of the right proximal ureter along with contrast enhancement (Fig. 2).
Ureterorenoscopic image of fibroepithelial polyp.
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Ureterorenoscopy detected a 7-cm-long stemmed lesion originating from the right proximal ureter (Fig. 3).
Macroscopic demonstration of fibroepithelial polyp.
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The lesion was resected by performing monopolar cautery with a Bugbee electrode, and the specimen was extracted through the ureteral orifice and was exteriorized outside the urethra by using forceps (Fig. 4).
Histologic preparation of fibroepithelial polyp showing stroma covered by layer of normal transitional epithelial cells (Hematoxylin&Eosin 40 x ).
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Histopathological analysis of the lesion indicated that it was a fibroepithelial polyp with negative surgical margins (Fig. 5).