Three-territory infarct in Trousseau syndrome: A case series and review of literature

Multiple arterial territorial cerebral infarcts of unknown etiology are typically described as cardioembolism, a common etiology attributed to atrial fibrillation. However, there is under evaluation of the association of multiple territorial arterial infarcts in the brain in association with malignancy. In the existing literature study, small lesions affecting several arterial regions in the brain can be the hallmarks of cancer-associated hypercoagulation-induced embolism. Herein, we report a series of three cases, who presented with multiple arterial territorial infarcts (three-territory sign) in the brain in a known case of malignancy.