Conventional and Advanced Post-treatment Magnetic Resonance Imaging of Primary and Metastatic Brain Tumours

INTRODUCTION Both primary and secondary brain neoplasms are commonly encountered in neuroimaging. Glioblastoma is the most common primary malignant brain tumour in adults.1 Mortality remains high despite development of different treatment options with combinations of surgery, radiotherapy, and chemotherapy. The 2-year and 5-year survival rates after diagnosis of glioblastoma are reported to be approximately 26.5%2 and 5% to 10%,3 respectively. Evaluation of treatment response and detection of treatment-related complications are crucial in patient management and rely heavily on neuroimaging.