Non Hodgkin Lymphomas (NHLs) are composed by a range of pathology caused by the malignant proliferation of lympho's organs. Objective: the study CT Scan of NHL of the nasosinusal. Materials and methods: Descriptive, prospective study in 46 patients was diagnosed with NHLsSN Results: Lesions of one nasal (37.0 percent), binasals (6.5 percent), sinusonasals (one side 34.8 percent), (bisides 19.6 percent). cloudy 63.0 percent, thickenss of mucus 23.9 percent, mixte 13.1 percent. Iso-dence (95.7 percent), hyper-dence 4.3 percent. Tumor advacede 89.1 percent
destroy of bone 58.7 percent (septum 37.0 percent), sinuso-nasal 21.7 percent, ethmoide 17.4 percent). Extension 41.3 percent (skin 21.7 percent), naso-pharynx 8.7 percent, eyes 8.7 percent), palate 6.5 percent. Conlusion: Tumor advacede 89.1 percent
destroy of bone 58.7 percent.