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Jung In Jo;Chang-Woo Ryu;Hak Cheol Ko;Hee Sup Shin
- Journal of the Korean Society of Radiology
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- v.83 no.3
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- pp.712-718
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- 2022
Diploic arteriovenous fistulas (AVFs) or intraosseous dural AVFs are rare arteriovenous shunts. A diploic AVF is formed between a meningeal artery and an intraosseous diploic vein or the transosseous emissary vein, and the nidus is located exclusively within the bone. Currently, endovascular embolization with a transvenous approach is considered the treatment of choice for most dural AVFs. However, in the absence of an accessible venous channel, an alternate treatment approach should be considered. Herein, we report a case of a diploic AVF that was treated using embolization with transosseous direct cannulation.
https://doi.org/10.3348/jksr.2021.0088 인용 PDF

Hyun Hwang;Jae Ho Shin;Jae Taek Hong;Yon Kwon Ihn
- Journal of the Korean Society of Radiology
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- v.82 no.6
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- pp.1628-1633
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- 2021
Spinal epidural arteriovenous fistulas (SEDAVFs) are rare spinal vascular malformations that are difficult to diagnose and treat. SEDAVFs can be asymptomatic; however, symptoms can arise from the compression of adjacent nerve roots by dilated vein and perimedullary venous reflux, caused by shunting into the epidural venous plexus. A 31-year-old male presented to our institution with a 2-year history of progressively worsening low-back pain, radiating thigh pain, and sensory changes in his lower extremities. MRI and CT angiography demonstrated dilated epidural vascular lesion compressing the nerve root. The SEDAVF was embolized with multiple coils, which alleviated the nerve root compression from the engorged venous varix and improved the patient's radiculopathy. Our experience from this case shows that endovascular coil embolization using the transarterial approach can be an effective treatment for SEDAVF and an alternative to surgical ligations.
https://doi.org/10.3348/jksr.2020.0188 인용 PDF