Fig. 1From: Collision tumours: a meningioma and not oedema, but an oligodendrogliomaA 54-year-old female, previously healthy, was admitted at the emergency department with seizures followed by vertigo. Brain CT axial images pre (A) and post-contrast (B), revealed an expansile extra-axial left frontal lesion with calcifications and homogeneous enhancement after contrast administration with underlying hypodensity of the parenchymaBack to article page