Transitional cell carcinoma of the renal pelvis
Incidental finding on CT performed for staging of colorectal carcinoma.
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Gross pathological sample
Nephrectomy ( cut ).
Large tumor occupying the renal pelvis extending into the upper and mid pole calyces.
Images courtesy of Department of Pathology, RIPAS Hospital, Brunei.
Transitional cell carcinoma is more commonly associated with the bladder, but can effect any part of the genitourinary tract.
In this case it was identified on a CT performed for other purposes. Hematuria is the main symptomatic presentation.