Fibroepithelial polyp of the ureter: the value of magnetic resonance imaging of the urinary tract in diagnosis and therapeutic planning

Tibana, Tiago Kojun; Santos, Rômulo Florêncio Tristão; Said, Luiz Augusto Morelli; Marchiori, Edson; Nunes, Thiago Franchi

doi:10.1590/0100-3984.2017.0214

Cited by 2 publications

(2 citation statements)

References 9 publications

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“…Benign tumors of the ureter are rare and constitute 20% of all ureteral tumors [ 3 ]. They can originate from epithelial or non-epithelial tissue.…”

Section: Discussionmentioning

confidence: 99%

A rare association in a patient with non-muscle invasive bladder cancer: ureteral fibroepithelial polyp and ipsilateral renal cell carcinoma: a case report

Akan

Ediz

2021

J Med Case Reports

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Background Fibroepithelial polyps located in the ureter constitute 2–6% of all benign tumors in the urinary system. Distinguishing these lesions from transitional cell carcinoma is essential to avoid unnecessary nephroureterectomy. Case presentation A 59-year-old asymptomatic caucasian male patient was enrolled in follow-up for Ta low-grade transitional cell bladder cancer 4 years ago in our clinic. A suspicious, solid, contrast-enhancing mass 15 × 9 mm in diameter in the anteromedial mid-section of the left kidney, which was causing minimal washout and largely located in the parenchyma, was reported as renal cell carcinoma on computed tomography during routine controls. In the excretory phase, soft-tissue densities of approximately 30 mm in length, which were located in the distal part of the left ureter at a distance of 40 mm from the ureterovesical junction, extending towards the lumen suggested a urethral carcinoma. Urothelial lesion was reported as fibroepithelial polyp after histopathological examination. Partial nephrectomy for the mass, which was reported as renal cell carcinoma in the left kidney, was performed in the first postoperative month. Histopathological examination revealed Fuhrman grade 1 papillary type renal cell carcinoma. No recurrence was observed in the first year after treatment. Conclusions Although our patient had a bladder transitional cell carcinoma and a suspicious renal cell carcinoma mass of 15 mm in the ipsilateral kidney, the patient was safeguarded from unnecessary nephroureterectomy early on by cross-sectional and endoscopic imaging of the ureter.

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“…Benign tumors of the ureter are rare and constitute 20% of all ureteral tumors [ 3 ]. They can originate from epithelial or non-epithelial tissue.…”

Section: Discussionmentioning

confidence: 99%

A rare association in a patient with non-muscle invasive bladder cancer: ureteral fibroepithelial polyp and ipsilateral renal cell carcinoma: a case report

Akan

Ediz

2021

J Med Case Reports

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“…Recent studies conducted in Brazil have highlighted the importance of imaging methods, particularly MRI, in the evaluation of tumors affecting the genitourinary system (17)(18)(19)(20)(21)(22) . The reported accuracy of mpMRI for tumor staging ranges from 75% to 94.5% (9,10,12,15) .…”

Section: Discussionmentioning

confidence: 99%

Diagnostic accuracy of retrospective application of the Vesical Imaging-Reporting and Data System: preliminary results

Vaz

Zaparolli

2020

Radiol Bras

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Objective: To evaluate the retrospective accuracy of the Vesical Imaging-Reporting and Data System (VI-RADS) in detecting muscle invasion in bladder cancer. Materials and Methods: We investigated patients who underwent pelvic magnetic resonance imaging and were submitted to transurethral resection of a bladder tumor between 2015 and 2018. Thirty cases were reviewed by radiologists blinded to the final clinical stage. The VI-RADS score was applied and compared with the histopathological findings in the surgical specimen. Results: Of the 30 patients with suspicious bladder lesions, 5 (16.6%) had benign histopathological findings, 17 (56.6%) had non-muscle-invasive bladder cancer, and 8 (26.6%) had muscle-invasive bladder cancer. The optimal criterion to detect muscle-invasive bladder cancer was a final VI-RADS score > 3, for which the sensitivity and specificity were 100% (95% CI: 56.0-100%) and 90.9% (95% CI: 69.3-98.4%), respectively. Conclusion: The VI-RADS appears to estimate correctly the degree of muscle invasion in suspicious bladder lesions. However, prospective studies evaluating larger samples are needed in order to validate the method.

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Fibroepithelial polyp of the ureter: the value of magnetic resonance imaging of the urinary tract in diagnosis and therapeutic planning

Cited by 2 publications

References 9 publications

A rare association in a patient with non-muscle invasive bladder cancer: ureteral fibroepithelial polyp and ipsilateral renal cell carcinoma: a case report

A rare association in a patient with non-muscle invasive bladder cancer: ureteral fibroepithelial polyp and ipsilateral renal cell carcinoma: a case report

Diagnostic accuracy of retrospective application of the Vesical Imaging-Reporting and Data System: preliminary results

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