The majority of bladder tumors are superficial (80%), classified as st
age T(A) (62%) and T1 (38%), according to the criteria of the UICC. Tr
ansurethral resection is the initial treatment in bladder carcinomas.
The major problem is to select those patients who are at risk for tumo
r recurrence or tumor progression and who may benefit from adjuvant tr
eatment modalities. The analysis of prognostic factors emphasizes the
fact that patients with T(A) or well-differentiated bladder carcinoma
belong to a low-risk group and need no further intravesical therapy. O
n the other hand, T1 G2/3 bladder carcinoma and carcinoma in situ have
to be considered as a high-risk group. We suggest that transurethral
resection alone is not sufficient because these patients have an incre
ased risk of local recurrence and progression. In treatment of bladder
carcinoma it is reasonable to start intravesical chemotherapy (i.e. m
itomycin or epirubicin or doxorubicin) or immunotherapy with BCG. So f
ar there is no indication for clinical use of interferons in superfici
al bladder tumors. If the tumor persists, a second cycle of BCG treatm
ent or intravesical chemotherapy can be added. However, the decision f
or cystectomy should be made not later than 3-4 months after the first
TUR in high-risk bladder cancer patients.