Extensive cerebral venous sinus thrombosis: a potential complication in a patient with COVID-19 disease

A 63-year-old man was admitted with left-sided weakness and subsequent focal seizures following a recent diagnosis of Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pneumonia in a nearby hospital. He developed status epilepticus and became comatose, requiring intensive care unit admission for invasive ventilation. Imaging done at admission confirmed extensive cerebral venous sinus thrombosis (CVST) with bilateral venous cortical infarcts and acute cortical haemorrhage. No known risk factor for CVST could be identified. He improved with anticoagulation and antiepileptic therapy. He was subsequently transferred to an inpatient rehabilitation facility. Although Coronavirus disease 19 (COVID-19) infection has been previously associated with thrombotic complications, these mostly relate to the pulmonary vasculature. We present this case as a potential association between CVST and COVID-19 infection.