Mastoid foramen

Last revised by Dr Yuranga Weerakkody on 13 Dec 2019

The mastoid foramen is a variably-present foramen as well as being variable in its size, number and position. Most commonly, it is located near the posterior margin of the mastoid process, within the temporo-occipital suture.

It transmits the emissary veins connecting to the sigmoid sinus and a small dural branch of the occipital artery.

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Cases and figures

  • Case 1: mastoid foramina
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