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Imaging of a patient with SIH symptoms without evidence of CSF leakage or CSF venous fistula. A 68-year-old male patient exhibiting classic SIH symptoms with typical cranial imaging findings, such as dural enhancement (A) and bilateral subdural hygroma (B) and no evidence of CSF leakage or CSF venous fistula despite repeated diagnostic work-up. Spinal MRI revealed a large number of prominent meningeal diverticula (C).
