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Computed tomographic myelography characteristics of spinal cord atrophy in juvenile muscular atrophy of the upper extremity.

Abstract：

:Although atrophy of the lower cervical and upper thoracic cord in juvenile muscular atrophy of distal upper extremity has been reported, the atrophic patterns of the cord, especially in the transverse section, have not been studied extensively. The aim of this study is to clarify the atrophic patterns of the cord by CT myelography (CTM) and to discuss the pathogenesis of cord atrophy. Sixteen patients with juvenile muscular atrophy of distal upper extremity were examined by CTM. Atrophy of the lower cervical and upper thoracic cord, consistent with the segmental weakness, was seen in all patients. Flattening of the ventral convexity was a characteristic atrophic pattern of the cord. Bilateral cord atrophy was commonly observed; eight of 12 patients with unilateral clinical form and all four patients with bilateral form showed bilateral cord atrophy with dominance on the clinical side. There was no correlation between the degree of cord atrophy and duration of symptoms. Flattening of the ventral convexity, associated with purely motor disturbances, reflects selective atrophy of the anterior horns in the cord, which is attributable to chronic ischemia. Cord atrophy proved to precede clinical manifestations. The characteristic atrophy of the cord provides useful information to confirm the diagnosis without long-term observation.

journal_name

Eur J Radiol

journal_title

European journal of radiology

authors

Hirabuki N,Mitomo M,Miura T,Hashimoto T,Kawai R,Kozuka T

doi

10.1016/0720-048x(91)90033-r

subject

Has Abstract

pub_date

1991-11-01 00:00:00

pages

215-9

issue

3

eissn

0720-048X

issn

1872-7727

pii

0720-048X(91)90033-R

journal_volume

13

pub_type

杂志文章

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