Spontaneous Intracranial Hypotension With Prominent Dorsal Perimedullary Veins Mimicking a Spinal Dural Arteriovenous Fistula.
Enlarged and tortuous veins along the dorsal aspect of the spinal cord are traditionally associated with a spinal dural arteriovenous fistula (dAVF). We present six cases demonstrating prominent dorsal perimedullary spinal veins in patients without a dAVF, but rather with a spinal CSF leak resulting in spontaneous intr...