case_images: PMC5098126_01
case_images: Retrograde pyelography reveals a filling defect (arrow) at the level of the ureteropelvic junction (UPJ).
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case_images: f1
case_images: Before the robotic correction of suspected UPJO, we usually place a Double-J ureteral stent; an intraoperative retrograde pyelogram showed a filling defect in the left ureteropelvic junction (UPJ) (Fig. 1).
case_images: The endoscopic appearance of the fibroepithelial polyp at the UPJ with white light and in spectra modality (SPIES).
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case_images: The clinical diagnosis of FEP in the UPJ was finally achieved through a ureterorenoscopy (Fig. 2).
case_images: Intraoperative view of ureteral polyp protruding outside from the incision of UPJ.
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case_images: A transverse distal renal pelvis incision revealed an irregularly shaped 25 mm polyp, circumferentially involving the ureteral lumen (Fig. 3).
case_images: High power view of section from the tissue shows a polypoid structure lined by benign transitional epithelium.
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case_images: f4