Inclusion Criteria:  All patients admitted to the neurology department and ER of an assuit university hospital with the diagnosis of venous sinus thrombosis accepting to participate in the study of both sex above 18 years and below 70 years  Exclusion Criteria:  1. any case evident to have neurological deficit due to cause other than venous sinus thrombosis 2. patients refused to participate in this study 3-patients with uncertainty about her imaging study