Bladder cancer is one of the most common cancer worldwide and the second most frequent urological cancer. The photodynamic diagnosis technique (PDD) currently used (Hexvix®) has improved tumor detection but with a high false positive rate. Indeed, the main limitation of the PDD is its lack of specificity, ranging from 35 to 66%. The association of this technique with new technologies such as the Cellvizio Dual Band featuring simultaneous dual wavelength illumination and detection, could improve the identification of tumoral lesions. The objective of this study is to demonstrate the efficacy of Cellvizio dual band technique for the diagnosis of tumors bladders.

Inclusion Criteria:

• Patients having 18 years old or more
• Patients with a bladder carcinoma and with indication of tumor resection under Hexvix procedure.
• Patients giving consent to participate in the study

Exclusion Criteria:

-No consent to participate in the study

Patients following a tumor resection of the bladder