Vinorelbine for Recurrent ALCL-2017

Inclusion Criteria: Children and adolescents with a clear diagnosis of recurrent / progressive ALCL at Shanghai Children's Medical Center or other centers since September 2017 include: Diagnosed as ALCL, already received first-line treatment, but get disease progression; After receiving ALCL treatment has got CR then diagnosed relapse, need for pathological diagnosis. Exclusion Criteria: Patients with other systemic diseases, severe infections or critically illness.