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Congress: ECR24
Poster Number: C-13927
Type: EPOS Radiologist (educational)
Authorblock: F. J. Azpeitia Arman, R. M. Lorente Ramos, I. Galan Gonzalez, C. Muñoz Roldán, A. Muñoz Hernandez, J. Azpeitia Hernandez, A. I. Rubio; Madrid/ES
Disclosures:
Dr. Francisco Javier Azpeitia Arman: Nothing to disclose
Dr. Rosa Maria Lorente Ramos: Nothing to disclose
Dr Itxaso Galan Gonzalez: Nothing to disclose
Dipl. Med. Candela Muñoz Roldán: Nothing to disclose
Dr Araceli Muñoz Hernandez: Nothing to disclose
Dr. Javier Azpeitia Hernandez: Nothing to disclose
Dr. Ana Inés Rubio: Nothing to disclose
Keywords: Abdomen, Kidney, Urinary Tract / Bladder, CT, Ultrasound, Contrast agent-intravenous, Calcifications / Calculi
Learning objectives To illustrate equivocal imaging findings of upper and lower urinary tract lesions, including normal variants, inflammatory/infectious diseases, and benign tumors mimicking genitourinary malignancy. To analyze the correlation between cystourethrogram, US, CT, and MRI features with pathology in urinary tract lesions. To emphasize pitfalls, diagnostic difficulties and keys for differential diagnosis.
Read more Background [fig 13] A mass or a thickening in the upper and lower urinary tract is typically caused by urothelial carcinoma, however several benign and malignant entities should also be included in the differential diagnosis. 
Read more Findings and procedure details Transitional cell carcinoma ( urothelial cell carcinoma ) is the most common primary urinary tract malignancy and may be found from the renal pelvis to the bladder. We review images of the urinary tract (pelvicalyceal system, ureters and bladder ) in different entities mimicking cancer.1.- Pelvicalyceal system and ureterOnly 2-3% of urothelial carcinoma occur in the renal pelvis. Extrarenal part of renal pelvis location is more common than infundibula and calyces.Radiographic appearances depend on the morphology: papillary tumors are soft tissue filling defects,...
Read more Conclusion Urinary tract lesions are frequently malignant, however several benign entities may mimic malignant lesions in the urinary tract. The radiologist should be familiar with presentation in different imaging techniques and remembre them in differential diagnosis of urinary tract lesions.
Read more References Jade J. Wong-You–Cheong, Paula J. Woodward, Maria A. Manning, and Isabell A. SesterhennNeoplasms of the Urinary Bladder: Radiologic-Pathologic CorrelationRadioGraphics 2006 26:2, 553-580Manini C, Angulo JC, López JI. Mimickers of Urothelial Carcinoma and the Approach to Differential Diagnosis. Clin Pract. 2021 Feb 25;11(1):110-123. doi: 10.3390/clinpract11010017. PMID: 33668963; PMCID: PMC7931042.Manini C., López J.I. Unusual faces of bladder cancer. Cancers. 2020;12:3706. doi: 10.3390/cancers12123706.Kryvenko ON, Epstein JI. Mimickers of urothelial neoplasia. Ann Diagn Pathol. 2019 Feb;38:11-19. doi: 10.1016/j.anndiagpath.2018.09.012. Epub 2018 Sep 26. PMID: 30380401.Froemming, A., Potretzke, T.,...
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