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J Radiol Case Rep. 2011;5(3):17-23. doi: 10.3941/jrcr.v5i3.602. Epub 2011 Mar 1.

Magnetic resonance imaging in Hirayama disease.

Author information

1
Department of Radiology, Fundacion Cardioinfantil - Instituto de Cardiología, Bogota, Colombia.

Abstract

Hirayama disease (HD) is a rare type of cervical myelopathy related to flexion of the neck characterized by progressive muscular weakness and atrophy of the distal upper limbs most frequently seen in young males. HD is thought to be secondary to an abnormal anterior displacement of the posterior dura with secondary compression of the lower cervical spinal cord and chronic injury to the anterior gray matter horns. We present two patients with HD and discuss its pathophysiology and imaging characteristics.

KEYWORDS:

magnetic resonance imaging; spinal cord compression; spinal muscular atrophy

PMID:
22470782
PMCID:
PMC3303436
DOI:
10.3941/jrcr.v5i3.602
[Indexed for MEDLINE]
Free PMC Article

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