positive cytology and negative biopsy were converted to negative in 7 cases by vesical instillation therapy , even in 4 cases with grade 3 tumors and in 2 cases with pt2 . in 6 cases with histologically proved cancer , urine cytology was positive or suspicious in 37.5 % ( positive in 25.0 % ) and vesical washing cytology was positive or suspicious in 71.1 % ( positive in 44.4 % ) .
C0027651
tumors
C0006826
cancer