Urothelial carcinoma in situ (CIS)
What is urothelial carcinoma in situ (CIS)? Urothelial carcinoma in situ (CIS) is a type of non-invasive cancer. It can occur anywhere along the urinary tract which includes the bladder, ureters, urethra, and kidneys. Urothelial CIS arises from specialized urothelial cells that cover the inside surface of these organs and create a barrier called the …
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