Peripherally enhancing, ovoid lesion in the right frontal lobe with abundant surrounding vasogenic oedema demonstrates linear almost continuous smooth low T2/susceptibility weighted artefact peripherally along the area of enhancement. There is true diffusion restriction centrally within the lesion with the lowest ADC value of approximately 530 x 10-6 mm2/s. The lesion extends up to the anterior horn of the right lateral ventricle, although there is no abnormal enhancement of the ependyma to suggest ventriculitis. Severe surrounding vasogenic oedema causing sulcal effacement at the right frontal lobe, effacement of the anterior horn of the lateral ventricles, and 6 mm of midline shift to the left. Oedema spreads through the anterior part of the corpus callosum without mass-like expansion. No other lesions identified.
Conclusion:
Features are those of a cerebral abscess.