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Hirayama Disease-Dynamic MRI, a rare diagnosis

We report the MR findings in a case of Hirayama disease, a kind of cervical myelopathy related to flexion movements of the neck. In flexion MR studies, we can see the striking and pathognomonic picture of anterior shifting of posterior dura at the lower cervical spinal canal and prominent epidural venous plexus. In non-flexion studies, we find that asymmetric cord atrophy, especially at the lower cervical cord, though subtle, is highly suggestive of Hirayama disease. When it is seen, a flexion MR study is warranted to prove this diagnosis.

Dr.Sumer K Sethi, MD

Consultant Radiologist ,VIMHANS and CEO-Teleradiology Providers

Editor-in-chief, The Internet Journal of Radiology

Director, DAMS (Delhi Academy of Medical Sciences

Hirayama Disease-Dynamic MRI, a rare diagnosis Reviewed by Sumer Sethi on Tuesday, June 17, 2008 Rating: 5

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