Paul Ryan, Ronette G Tyndall, Alexandre Boutet, Joanna D Schaafsma, Hugo Andrade, David Volders, Eef J Hendriks
Venous varices of the inferior sagittal sinus are rare benign entities. At our institution's Multidisciplinary Neurovascular Clinic, we recently received several referrals regarding "pericallosal artery aneurysms" which in fact represented venous outpouchings or varices of the inferior sagittal sinus. This case series highlights venous varices of the inferior sagittal sinus as a potential diagnostic pitfall, mimicking pericallosal artery aneurysms on neuroimaging, which may lead to unnecessary referral for neurointerventional management.