The successful arthroscopic treatment of suprascapular intraneural ganglion cysts

Nikhil K. Prasad, Robert J. Spinner, Jay Smith, Benjamin M. Howe, Kimberly K. Amrami, Joseph P. Iannotti, Diane L. Dahm

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


Object High-resolution magnetic resonance imaging (MRI) can distinguish between intraneural ganglion cysts and paralabral (extraneural) cysts at the glenohumeral joint. Suprascapular intraneural ganglion cysts share the same pathomechanism as their paralabral counterparts, emanating from a tear in the glenoid labrum. The authors present 2 cases to demonstrate that the identification and arthroscopic repair of labral tears form the cornerstone of treatment for intraneural ganglion cysts of the suprascapular nerve. Methods Two patients with suprascapular intraneural ganglion cysts were identified: 1 was recognized and treated prospectively, and the other, previously reported as a paralabral cyst, was identified retrospectively through the reinterpretation of high-resolution MR images. Results Both patients achieved full functional recovery and had complete radiological involution of the intraneural ganglion cysts at the 3-month and 12-month follow-ups, respectively. Conclusions Previous reports of suprascapular intraneural ganglion cysts described treatment by an open approach to decompress the cysts and resect the articular nerve branch to the glenohumeral joint. The 2 cases in this report demonstrate that intraneural ganglion cysts, similar to paralabral cysts, can be treated with arthroscopic repair of the glenoid labrum without resection of the articular branch. This approach minimizes surgical morbidity and directly addresses the primary etiology of intraneural and extraneural ganglion cysts.

Original languageEnglish (US)
Article numberE11
JournalNeurosurgical focus
Issue number3
StatePublished - 2015


  • Intraneural ganglion cyst
  • Labral tear
  • Peripheral nerve imaging
  • Shoulder
  • Suprascapular nerve
  • Unified articular (synovial) theory

ASJC Scopus subject areas

  • Surgery
  • Clinical Neurology


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