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Post-gadolinium T1-weighted MRI images of the patient’s head in sagittal, axial and coronal planes (left to right) demonstrating a well-defined, oval-shaped, vividly and homogeneously enhancing solid extra-axial lesion in the region of the medullary obex (yellow arrow). No mass effect, surrounding oedema, hydrocephalus or other lesions in neuraxis were identified (additional imaging not shown).
