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AJNR Am J Neuroradiol. 2011 May;32(5):E83-4. doi: 10.3174/ajnr.A2094. Epub 2010 Apr 15.

A venous cause for facial canal enlargement: multidetector row CT findings and histopathologic correlation.

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  • 1Department of Radiology, Beth Israel Deaconess Medical Center, Boston, Massachusetts 02215, USA.


An enlarged facial nerve canal can be a seen in both pathologic and nonpathologic processes. The purposes of this report are the following: 1) to present a rare cause of bony facial nerve canal enlargement, due to an enlarged vein, with high-resolution MDCT and histopathologic correlation; and 2) to discuss the vascular anatomy that gives rise to this variant.

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