ALK and mature T-cell and NK-cell non-Hodgkin lymphoma: Rodriguez et al. reviewed 26 high-risk PTCL patients, excluding ALK-positive ALCL, where patients were restaged with gallium scans following three cycles of mega-CHOP (cyclophosphamide 2 g/m2, doxorubicin 90 mg/m2 and vincristine 1.4 mg/m2 on day 1, prednisolone 60 mg/m2 days 1–5).