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We thank the authors for their letter in regards to our article.1 We would like to offer the following replies:
We agree the middle meningeal artery (MMA) is usually, in a non-pathological state, smaller than the occipital artery. However, with increased flow demand (such as that created by a dural fistula), vessels can enlarge. This was demonstrated in our patient (in figure 2 of our article), where the posterior branch of the MMA is essentially the same size as the occipital artery. …
Competing interests None declared.
Provenance and peer review Commissioned; internally peer reviewed.