RT Journal Article SR Electronic T1 Risks of Tumor Embolization in the Presence of an Unrecognized Patent Foramen Ovale: Case Report JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 982 OP 984 VO 23 IS 6 A1 Horowitz, Michael Bruce A1 Carrau, Ricardo A1 Crammond, Donald A1 Kanal, Emanuel YR 2002 UL http://www.ajnr.org/content/23/6/982.abstract AB Summary: A patent foramen ovale (PFO) is a fairly common septal defect in the general population. Paradoxical embolization through a PFO is a known cause of stroke. Preprocedural recognition of a PFO in a patient undergoing particulate arterial embolization can help reduce the risk of cerebral infarction.