RADIOLOGICAL FEATURES OF BRAIN METASTASES ON MRI

Brain metastases are the most common intracranial tumors in adults, accounting for approximately 20–40% of all brain neoplasms. Magnetic Resonance Imaging (MRI) plays a central role in the detection, characterization, and monitoring of metastatic brain lesions due to its superior soft tissue contrast and multiplanar capability. This article reviews the key radiological features of brain metastases on MRI, including conventional sequences and advanced imaging techniques. Emphasis is placed on lesion morphology, enhancement patterns, surrounding edema, and differential diagnostic considerations. Current literature and statistical data are also analyzed to highlight the diagnostic accuracy of MRI in clinical practice.