This study will evaluate the benefit of lidocaine perfusion in cancer related visceral pain resistant to morphinics. It is an efficacy study in adults and children and a randomized prospective study.

Inclusion Criteria:

• Patients suffering from cancer of any type, at any stage, hospitalized at the Institut Gustave Roussy
• Aged from 6 to 14 years old (group A) and from 15 to 70 years old (adults)
• Presenting visceral pain due to neurotoxic chemotherapy, due to the tumoral mass or to peritoneal carcinosis
• Pain resistant to morphinic treatment

Exclusion Criteria:

• Cardiac troubles, clinical cardiac insufficiency, or history of myocardial infarction (MI) of less than 3 months
• Neurological: non-controlled epilepsy, encephalopathy, or dementia
• Severe hepatic insufficiency
• Severe renal insufficiency
• Respiratory insufficiency
• Patients having surgery or in postoperative period
• Known deficit in G6PD, alanine exposure, or sulphamide treatment
• Porphyria
• Weight > 80 kg