Open AccessAn unusual case of anteroinferior paralabral cyst with axillary nerve compression: A case report
Author(s) -
Arun Govindraj Ramaswamy,
Namrata Srinivasan
Publication year - 2021
Publication title -
journal of arthroscopic surgery and sports medicine
Language(s) - English
Resource type - Journals
ISSN - 2582-7332
DOI - 10.25259/jassm_18_2021
Subject(s) - medicine , axillary nerve , cyst , surgery , decompression , deltoid muscle , anatomy , nerve injury , deltoid curve , brachial plexus
Paralabral cysts are an uncommon cause of shoulder pain in young adults. Their association with neurological symptoms is seldom reported in the literature. The cysts are believed to develop when there is a labral tear allowing synovial fluid entry into tissues causing one-way valve effect. This case report describes a case of anteroinferior paralabral cyst in a painful shoulder associated with axillary nerve palsy. MRI revealed an anteroinferior labral cyst. Electromyography revealed denervation of deltoid and teres minor muscles. Shoulder arthroscopy was performed with cyst decompression and labral repair. Shoulder function improved gradually and by the end of 1 year, power was back to pre-injury status. Paralabral cysts are a rare entity. When associated with nerve injury, prompt decompression is necessary to prevent irreversible nerve and muscle damage.