Critères d'inclusion : - Man or woman aged 18 years or more
- Patients with one or several ganglionic or visceral residual masses (> to 1 cm) after chemotherapy for metastatic non-seminoma testicular tumor, and for which or which a surgery is planned;
- Affiliate to a social security system;
- Signed written Informed consent
Critères de non-inclusion : - Patient deprived of liberty as a result of a justice or administrative decision
- Any medical or psychological condition which could compromise the capacity of the patient to participate in the study;
- Previous or concomitant other cancer in 5 years except basal cell carcinomas