J Korean Neurol Assoc.  2010 Nov;28(4):319-322.

Isolated Injury of the Axillary Nerve Branch to Teres Minor Muscle Following After Traumatic Posterior Instability of Shoulder

Affiliations
  • 1Department of Neurology, Seoul National University College of Medicine, Seoul, Korea. kwoo@plaza.snu.ac.kr
  • 2Department of Neurology, Chung-Ang University College of Medicine, Seoul, Korea.

Abstract

We describe a case of a 23-year-old man who presented with posterior instability of the right shoulder following trauma. Focal neuropathy of the axillary nerve branch to the teres minor muscle was diagnosed electrophysiologically. A shoulder magnetic resonance image revealed fatty atrophy of the teres minor muscle with sparing of the deltoid, supraspinatus, infraspinatus, and subscapularis muscles. To our knowledge, this is the first case of selective injury of the branch of the axillary nerve to the teres minor muscle to be described in Korea.

Keyword

Axillary nerve injury; Teres minor muscle; Nerve conduction study

MeSH Terms

Atrophy
Humans
Korea
Magnetic Resonance Spectroscopy
Muscles
Shoulder
Young Adult
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