Intraparenchymal haemorrhage in the posterior left temporal lobe with surrounding subarachnoid blood and blood layering on the tentorium cerebelli. The left transverse sinus is hyperdense. Hypodense region surrounding the haemorrhage in keeping with oedema.
Mild effacement of the left ambient cistern. No midline shift. Grey-white matter differentiation is preserved with no evidence of acute ischaemia. Old left lacunar infarct. No calvarial fracture or suspicious bony abnormality seen. Imaged paranasal sinuses and mastoid air cells are clear.
Conclusion:
Left temporal lobe haemorrhage with surrounding oedema, in association with hyperdense left transverse sinus. The findings are most in keeping with a venous infarct secondary to venous sinus thrombosis.