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AJNR - American Journal of Neuroradiology

Published ahead of print on October 9, 2007
doi: 10.3174/ajnr.A0745

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The Impact of Cavernous Sinus Drainage Pattern on the Results of Venous Sampling in Patients With Suspected Cushing Syndrome

N. Hayashi^a, M. Kurimoto^a, M. Kubo^a, N. Kuwayama^a, K. Kurosaki^a, S. Nagai^a and S. Endo^a

^a From the Department of Neurosurgery, Faculty of Medicine, University of Toyama, Toyama, Japan

View larger version (170K): [in this window] [in a new window]   Fig 1. Anteroposterior view of cavernous sinography in case 5, demonstrating that the main drainage route was the IPS bilaterally.

View larger version (170K): [in this window] [in a new window]   Fig 2. Lateral view of right cavernous sinography in case 1, showing that the pterygoid plexus was developed to the same extent as the IPS. Note that the opacification of the pterygoid plexus is more than the one of the IPS, but this may be due to the rate and the force of injection of contrast material.

View larger version (98K): [in this window] [in a new window]   Fig 3. Anteroposterior view of right cavernous sinography in case 4, showing the tip of the microcatheter (arrow) in the CS (right) and that the main drainage route is via the pterygoid plexus (left). Note that the microcatheter is introduced through the IPS into the CS and that contrast material moves from the CS into the pterygoid plexus.