Changes

*CTs with contrast: Tumors within the kidney, ureters or bladder.

[[File:CT of bladder cancer.jpg|thumb|200px|Nodular bladder tumor.]]

:*Signs of bladder tumor:

::*Bladder wall thickening, which may indicate a bladder tumor, especially when nodular or irregular.<ref name="RamanFishman2014"/> Look both at images 40 seconds after IV contrast and with contrast-containing bladder lumen, since that contrast may both demarcate a tumor as well as obscure one by beam-hardening artifacts.<ref name="RamanFishman2014"/> In suspected bladder tumor, see '''[[CT of urinary bladder tumors]]'''

:*Lymph nodes. Enlarged lymph nodes may be metastases. Generalized lymphadenopathy may indicate lymphoma, and in such cases tumors in the urinary system may be lymphomas as well.<ref name="RamanFishman2014"/>

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