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Upper urinary tract transitional cell carcinoma (UUTT) is a rare condition, and there are no internationally validated guidelines on how to treat these lesions. Invasive and metastatic disease is more common than in bladder transitional cell carcinoma (TCC). Ureteroscopy with biopsy and computed tomography (CT) urography add diagnostic accuracy; however, in high-grade lesions, muscle invasion and...
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