[Spinal dural AVM--report of three cases].
A new type of spinal AVM is reported. The characteristics are as follows: All the patients are male over 50-years-old. Their symptoms are insiduous and progressive ischemic pattern. All the lesions locate at the thoracic and lumbar levels. Selective intercostal angiography shows a fistulous AVM adjacent to the intervertebral foramen fed by spinal dural branch and drain into tortuous veins on the spinal cord via radiculomedullary vein. No typical hair-pin configuration by radiculomedullary and spinal cord arteries contributes to the AVM. This type of spinal AVM must be distinguished from so-called singled coiled type spinal cord AVM since pathophysiological features presumably are different from each other; the former is "dural" on anatomical basis, whereas the latter is "pial". Embolization should be recommended as a first choice of treatment to spinal dural AVM.
K
K
Hida
Y
Y
Iwasaki
T
T
Isu
M
M
Akino
H
H
Abe
K
K
Tashiro
K
K
Yoshida
K
K
Miyasaka
H
H
Takei
S
S
Abe
D000368:Aged; D001165:Arteriovenous Malformations / Q000000981:diagnostic imaging / Q000628:therapy*; D004388:Dura Mater / Q000098:blood supply; D004621:Embolization, Therapeutic; D006801:Humans; D008297:Male; D008875:Middle Aged; D009192:Myelography; D013116:Spinal Cord / Q000098:blood supply*