To confirm the benefit of endoscopic resection under fluorescence and blue light of high grade non-muscle invasive bladder tumor, and verifying if the second endoscopic resection recommended nowadays can be deleted.

Inclusion Criteria:

- 18 year-old and older male and female subjects having high grade non-muscle invasive bladder tumor, with urinary cytology , imaging examination (Ultrasound, urography, or scan) and endoscopic examination

Exclusion Criteria:

- Less than 18 years of age, and having no:

• Non-muscle invasive tumor, and of low grade.
• Bladder tumor infiltrating the muscular layer shown by pre-operative test, with absence of urinary cytology
• No blue light source in sustainable way