There are two foreign bodies (~5 cm in length each) extending from the midline vertex at the scalp and lying in an encapsulated fluid collection that contains small volume gas and demonstrates central diffusion restriction with a ring-enhancing wall consistent with abscess formation. Several foci of susceptibility within the cavity suggest small volume haemorrhage This is associated with significant right frontoparietal vasogenic oedema, right convexity moderate sulcal effacement and distortion/compression of the occipital horn and trigone of the right lateral ventricle. There is mild leftward shift of the midline structures by 3 mm. The basal cisterns are patent and the foramen magnum is capacious.
Conclusion: Right frontoparietal intraparenchymal abscess formation surrounding the two foreign bodies.