Suprascapular Nerve Injury Restricted to the Infraspinatus Muscle by a Ganglion Cyst: A case report.

, Shim, Dae Seop; , Rah, Ueon Woo; , Moon, Hae Won; , Lee, Il Yung; , Eom, Jae Ho

Case Report

Journal of the Korean Academy of Rehabilitation Medicine 2002;26(6):819-821.

Shim, Dae Seop , Rah, Ueon Woo , Moon, Hae Won , Lee, Il Yung , Eom, Jae Ho

Department of Physical Medicine and Rehabilitation, Ajou University School of Medicine, Korea. pmr3707@freechal.com

결절낭종에 의한 극하근에 국한된 견갑상신경 손상 1례 ⁣증례 보고⁣

심대섭·나은우·문혜원·이일영·엄재호

아주대학교 의과대학 재활의학교실

Abstract

Suprascapular nerve injury restricted to the infraspinatus muscle is an uncommon condition. We present a 29 year-old man who complained of right shoulder pain and weakness for 8 months. Physical examination revealed atrophy of right infraspinatus muscle and T2 weighted MRI of the right shoulder revealed a mass with homogeneous high intensity at the spinoglenoid notch and atrophy of right infraspinatus muscle. EMG study revealed abnormal spontaneous activities and reduced recruitment pattern of motor units in right infraspinatus muscle. Symptoms improved after the excision of a mass which was a ganglion cyst by pathologic examination. We were reporting a case of suprascapular nerve injury restricted to the infraspinatus muscle. (J Korean Acad Rehab Med 2002; 26: 819-821)

Key Words: Suprascapular nerve, Ganglion cyst, Infraspinatus muscle, Spinoglenoid notch