Pinnate Venation: The veins extend from the midrib to the leaf margin. Oak and cherry tree leaves have pinnate venation. Palmate Venation: The veins radiate in a fan shape from the leaf petiole.

INTRODUCTION: Changes in venous drainage imaging have been directly related to parenchymal damage in acute ischemic stroke during endovascular treatment. Venous asymmetry assessed by CT prior to ...

Background: The high pressures documented in the intracranial venous sinuses in idiopathic intracranial hypertension (IIH) could be the result of focal stenotic lesions in the lateral sinuses ...