PET/CT is a standard imaging technique for tumor response assessment in lymphoma. Deauville scale is used to interpret post treatment PET/CT studies. We proposed 5-level scale for whole body MRI-DWI exams interpretation (Minsk scale) in patients with lymphoma after treatment. Five-level structure of Minsk scale makes it comparable to Deauville scale. Treatment response assessment using MRI-DWI and Minsk scale match PET/CT results in 93 of 105 (89%) patients. Survival analysis confirmed prognostic value of Minsk scale. MRI-DWI and Minsk scale could be recommended for tumor response evaluation in lymphoma as non-irradiative alternative to PET/CT.