Right TN in a 45-year-old man caused by venous compression.

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Presentation transcript:

Right TN in a 45-year-old man caused by venous compression. Right TN in a 45-year-old man caused by venous compression. Axial (A) and coronal (C) 2D reconstruction from CISS (0.7-mm thin sections). Contrast-enhanced 3D T1-weighted reconstructed images (0.9 mm) in the axial (B) and coronal (D) planes. Intraoperative views before (E) and after (F) the operation. MR imaging shows bifocal CN V (white arrows) compression by the Dandy vein (white short arrows) and by a transverse pontine vein (black arrows), respectively. Teflon (Dupont, Wilmington, Delaware) (asterisk, F) was interposed between CN V (white arrow, F) and the Dandy vein (white arrowhead, F). The transverse pontine vein was coagulated (black arrow, F). Intraoperative images are courtesy of Dr Arnaud Deveze, MD, Department of Ear, Nose and Throat Surgery, University Hospital, Hôpital Nord, Marseille, France. S. Haller et al. AJNR Am J Neuroradiol 2016;37:1384-1392 ©2016 by American Society of Neuroradiology