Patients with lymphoma will be evaluated before chemotherapy (T1), after 4 cycles (T2), at the end of the chemotherapy treatment (If more than 4 cycles) (T3) and 6 month after the end of chemotherapy (T4).
Vincristine-induced peripheral neuropathy, which is commonly a sensorimotor neuropathy, remains a major complication of lymphoma patients treated with R-CHOP. The investigators propose a clinical, electrophysiological and biological follow up of patients treated by vincristine for lymphoma to determine the factors implied in VIPN occurrence.