A 37 x 24 mm mass with irregular peripheral enhancement has developed at the superomedial aspect of the right frontal lobe, abutting the anterior body of the right lateral ventricle. There is probably extension into and across the corpus callosum. There is no definite pre-contrast hyperdensity to suggest haemorrhage. Oedema surrounding the mass contributes to local mass effect, including sulcal effacement and minimal midline shift. No uncal herniation or hydrocephalus is appreciated.