Dorello canal

Last revised by William Howden on 9 Apr 2023

Dorello canal channels the abducens nerve (CN VI) from the pontine cistern to the cavernous sinus

Dorello canal is an interdural space (between the two layers of dura) found at the medial most end of the petrous ridge at the confluence of the inferior petrosal, basal, and cavernous sinuses 6.

Named after Primo Dorello (1872-1963), the Italian anatomist who described the anatomical relationship of structures within the canal in 1905 3.

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Cases and figures

  • Case 1: invasion of Dorello canal by petrous apex chondrosarcoma
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  • Case 2: abducens nerve before entering Dorello canal
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