Cerebral Venous Thrombosis Presenting as Cortical Subarachnoid Haemorrhage- A Case Report and Review

Abstract

In the presence of Subarachnoid Haemorrhage (SAH), diagnosis of underlying Cerebral Venous Thrombosis (CVT) is challenging as there is no difference in clinical presentation and therapeutically it is important because CVT needs to be treated with anticoagulant, unlike SAH. This article is about a 50-year-old male presenting with headache, right hemiparesis, and recurrent seizures. Computed Tomography (CT) head was suggestive of SAH in right posterior parietal region. But Magnetic Resonance Imaging (MRI) venogram showed cerebral venous sinus thrombosis. Hence, he was treated with anticoagulants. The patient showed significant clinical improvement. SAH secondary to underlying CVT is a relatively rare entity. After reviewing medical literature of such cases, 42 case reports and case series forming 95 cases of SAH secondary to CVT were found.

Keywords

• anticoagulation
• cerebral venous infarction
• non-aneurysmal subarachnoid haemorrhage