**6. Conclusion**

Intra‐axial brain lesions are a significant health problem and are often a diagnostic imaging challenge. Advanced MRI techniques including proton spectroscopy, perfusion, and DWI have all been evaluated primarily in the context of distinguishing high‐grade gliomas from metastases, abscess, and CNS lymphoma. Knowledge of the imaging characteristics of the most common intra‐axial masses may allow the non‐invasive diagnosis and classification of these masses.
