Sigmoid sinus thrombosis secondary to spontaneous temporal bone cerebrospinal fluid fistula: a case report
DOI:
https://doi.org/10.22491/2357-9730.118846Keywords:
Cefaleia, Espaço subaracnóideo, Fístula, Osso temporal, Trombose venosa, Hipotensão intracranianaAbstract
Temporal bone cerebrospinal fluid fistula is a rare event that results from abnormal communication between the subarachnoid space and the mastoid cells, allowing
the cerebrospinal fluid to flow into the pneumatized portions of the temporal bone. It leads to spontaneous intracranial hypotension, characterized by loss of cerebrospinal fluid and orthostatic headache as a clinical manifestation. Spontaneous intracranial hypotension is believed to create favorable hemodynamic conditions to the occurrence of cerebral venous thrombosis, a potentially fatal disorder of difficult diagnosis given
the nonspecific clinical signs and symptoms. Therefore, it is pertinent to consider the possibility of cerebral venous thrombosis in patients with cerebrospinal fluid fistulas,
especially when there is a modification in the headache pattern from orthostatic to intense and continuous pain.
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