[Diagnostic imaging of lymphomas].

Computed tomography (CT) is currently the most commonly tool used for staging malignant lymphoma at diagnosis and restaging the disease after treatment. However functional imaging and mainly the 18-F-fluoro-2-deoxyglucose positron emission tomography (PET) outperforms CT in 18-FDG avid lymphomas. PET is now included in the new international response criteria and allows a better assessment of remaining residual mass after treatment. Early TEP result is an independent prognosis factor in diffuse large B cell lymphoma and Hodgkin lymphoma. Ongoing clinical trials are now testing risk adapted strategies based on early TEP results in these two lymphoma subtypes.