Superior sagittal sinus, straight sinus and internal cerebral veins are consistently seen on MRV with slight variation of inferior sagittal sinus.
Six other patients had an epidural abscess alone (15.4%), five had a subdural abscess (12.8%), four had an intracerebral abscess (10.3%), one had both an epidural abscess and Pott's puffy tumor (2.6%), one had Pott's puffy tumor alone, and one had
superior sagittal sinus thrombosis (table 3).
Superficial cortical veins drain into
superior sagittal sinus against the blood flow in sinus, thus causing turbulation in the blood stream that is further aggravated by the presence of fibrous septa present at inferior angle of the sinus.
In this study the most common site of sinovenous occlusion was in
superior sagittal sinus. One patient had cavernous sinus thrombosis secondary to skin infection of dangerous area of face.
In MRV,
superior sagittal sinus was observed in 31 (60.8%) patients, transverse sinus in 40 (78.4%), sigmoid sinus in 16 (31.4%) patients, and cavernous sinus involvement in 1 (2%).
The most common clinical symptom, predisposing factor, involved sinus, and common underlying disorder was headache (95.2%), taking OCP (52.4%),
superior sagittal sinus (71.4%), and infraction (47.6%) respectively.
Craniotomy is generally performed around the vertex, allowing for access to all portions of the
superior sagittal sinus, though careful intraprocedural positioning is required to adequately position the head above the heart to promote venous drainage while minimizing the risk for air emboli formation (Ekseth et al.).
The sinus thrombosis resulted in an increase in pressure in the
superior sagittal sinus and a decrease in CSF absorption by arachnoid villi.
Taking attention to protecting
superior sagittal sinus and avoiding rupture of the cyst, the neurosurgeon totally resected the tumor.
Two patients showed
superior sagittal sinus thrombosis and one revealed left transverse sinus thrombosis and other patient showed thrombosis in transverse and sigmoid sinuses.
The termination of
superior sagittal sinus and drainage patterns of the lateral, occipital at confluens sinuum in newborns: clinical and embryological implications.