4 | CONCLUSION
SDAVF is an uncommon condition primarily impacting the spinal cord,
characterized by venous congestion of the spinal cord stemming from a
dural arteriovenous fistula. Although it may present with symptoms of
intermittent lameness, it may not have typical symptoms because of its
gradual progression. As in this case, this condition is often
misdiagnosed as a lumbar spine disease, such as lumbar degenerative
disease, by missing abnormal signals in the conus medullaris on the
initial lumbar MRI. Imaging plays a crucial role in achieving a precise
diagnosis, with T2-weighted images proving particularly valuable for the
diagnosis of SDAVF. MRI sagittal sections show high signal intensity of
the spinal cord and dilated spinal veins in the subarachnoid space. The
treatment options encompass both direct microsurgery and endovascular
embolization. Because SDAVF is treatable, early detection using
diagnostic imaging is important.