Patients with follicular lymphoma who require therapy and have been previously untreated are eligible for this non-randomized, phase II study evaluating up front therapy with CHOP-R x 3 cycles followed by zevalin and 4 additional weeks of rituxan.The complete response will be determined by combining IWC criteria and PET scanning.Secondary objectives include PET-CT conversion rate, frequency and severity of adverse events, duration of complete remission and time to next lymphoma therapy.
