Cerebral venous thrombosis following spontaneous intracranial hypotension diagnosed by craniotomy: A case report and diagnostic pitfalls

BACKGROUND: Cerebral vein and dural sinus thrombosis (CVT) is a rare but important complication of spontaneous intracranial hypotension (SIH). The diagnosis is difficult in cases lacking typical symptoms and typical imaging findings. CASE DESCRIPTION: A 29-year-old male patient with a seizure attack was admitted to our hospital. Based on the head imaging findings, we misdiagnosed the patient with primary cerebral parenchymal lesion and performed an open biopsy. However, during the procedure, the patient was diagnosed with low cerebrospinal fluid pressure and cerebral cortical vein thrombosis. CONCLUSION: Thus, CVT due to SIH should be considered as a probable cause of secondary parenchymal lesions.