Spinoglenoid notch ganglion cyst

Case contributed by Dr Andrew Lawson

Presentation

Supraspinatus palsy

Patient Data

Age: 36
Gender: Male

A large well-circumscribed fluid intensity T1 hypointense/T2 hyperintense cystic lesion measuring 2.5 X 2.5 (axial) X 2.8 (cc) cm is demonstrated, centred in the spino-glenoid notch, contiguous with the posterior glenoid labrum, in keeping with a paralabral cyst. This results from a focal posterior labral detachment, about 9 o'clock.

No extension of the cyst into the suprascapular notch. No supraspinatus atrophy nor oedema. No rotator cuff tear. Biceps tendon enlocated and unremarkable. No AC joint abnormality. No fractures or marrow abnormality.

Conclusion: Large spino-glenoid notch paralabral cyst, likely from glenoid labrum tear. No suprascapular notch extension.

Case Discussion

Cyst in the spinoglenoid notch typically arise from labral tear. They may lead to suprascapular nerve neuropathy.

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Case information

rID: 26095
Case created: 28th Nov 2013
Last edited: 29th Sep 2015
Inclusion in quiz mode: Included

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