A semi-quantitative analyse of Choline (Cho), N-acetyl aspartate (NAA) and Creatine (Cre) ratios in comparison with the contralateral normal brain tissue was used as a internal reference peak and Cho / Cr, Cho / NAA and NAA / Cr ratios of lesion brain tumor also were calculated Results: Tumors showed significant increases Cho, Cho / Cr and Cho / NAA ratios, decreases NAA and NAA / Cre ratio in comparison with non-neoplastic lesions and normal individuals (P<0.05). Conclusions: MRS aided to conventional imaging studies helps more differentiation between brain neoplastic lesions and non-neoplastic lesions.