Evaluate oncologic outcomes of patients with cT1 nested variant (NV) of urothelial carcinoma (UC) and compare with cases of pure UC of the bladder.
We retrospectively identified 30 patients with NV who, between 1997 and 2012, underwent transurethral resection with T1 tumor stage, followed by restaging transurethral resection within 3 months confirming non-muscle-invasive disease.