We read with great interest the article entitled "Traumatic fistula between the middle meningeal artery and the sphenoparietal sinus" by Unterhofer et al. [3] in the Oct 2009 issue of Acta Neurochirurgica. The authors presented a case of post-traumatic fistula between the middle meningeal artery and the sphenoparietal sinus and discussed the relevant literature. They pointed out that the laterobasal fractures involving the floor of the middle temporal fosse can lead to fistula formation between the middle meningeal artery and the sphenoparietal sinus. Therefore, they stressed the need to include selective angiographic catheterization of the external carotid artery when bone damage after head injury involves the lateral skull base and a fistula is suspected on clinical grounds. We agree with the authors' opinion; however, we would like to comment on this issue. We previously reported a case of a traumatic middle meningeal arteriovenous fistula on the opposite side of a head injury [2].
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