Abstract
Dural sinus thrombosis can still cause death or permanent disability, despite improvements in diagnosis and treatment. The initial diagnosis of mild cases may be mistaken, because the symptoms and clinical course are highly variable. We report here 4 mild cases of dural sinus thrombosis, in 2 males and 2 females aged between 20 and 72 years, manifesting as headache in 3 patients, including 2 with thunderclap headache, and transient lower limb weakness in one patient. CT and MR imaging revealed no abnormalities of the brain parenchyma. The final diagnosis was established by angiography, but T1-weighted MR imaging was useful for thrombus detection in the dural sinus at the early stage. The occlusions were located in the superior sagittal sinus, transverse sinus and sigmoid sinus. All patients were treated by anticoagulant therapy and demonstrated good clinical courses. Early diagnosis and treatment are essential for dural sinus thrombosis.
