Spinoglenoid notch ganglion cyst

Last revised by Dai Roberts on 18 Jan 2023

Spinoglenoid notch ganglion cysts are a location-specific form of ganglion cysts that arise in the region of the spinoglenoid notch.

They are generally rare and may be slightly more common in males 2.

They may result in suprascapular nerve compression at the spinoglenoid notch. Other described features include infraspinatus atrophy, weakness with external rotation and posterior shoulder tenderness 4

Typically seen as a variably sized cystic lesion at the size of the spinoglenoid notch. Signal characteristics are similar to other ganglion cysts and include:

  • T1: low signal

  • T2: high signal

MRI may also show associated infraspinatus atrophy.

Treatment options range from conservative management to aspiration of the cysts and excision 4. Most cysts are thought to resolve with treatment 6.

Imaging differential considerations include:

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