No intra- or extra-axial collection or haemorrhage demonstrated. No focal abnormality. Grey-white differentiation is preserved. Ventricular size, sulcal pattern and basal cisterns all appear normal. Dural venous sinuses are normal density.
Opacification of the left middle ear cleft and left mastoid air cells. No bony destruction or ossicular disruption. Soft tissue thickening of the external acoustic canal. The fossa of Rosenmuller is unremarkable.