Abstract
Each structure within the posterior cranial fossa, including the brainstem, cerebellar surfaces, cerebellar peduncles, and cerebellar arteries and veins comprises of three parts (Table 1.1). Rhoton AL Jr and colleagues proposed the “rules of three” to understand the anatomy of the posterior cranial fossa and cerebellopontine angle (CPA) [1, 4, 8, 9]. Particularly, the etiology of neurovascular compression syndromes is easily understood when related to the three anatomical components of the CPA [2, 3, 6, 7]. In this chapter the “rules of three” is explained.
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References
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Matsushima, T. (2015). The “Rules of Three” in the Posterior Cranial Fossa. In: Microsurgical Anatomy and Surgery of the Posterior Cranial Fossa. Springer, Tokyo. https://doi.org/10.1007/978-4-431-54183-7_1
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DOI: https://doi.org/10.1007/978-4-431-54183-7_1
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