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Axillary Intraneural Ganglion Cysts
Kartik G Krishnan1, Nikhil K Prasad, Kimberly K Amrami
1Department of Neurosurgery, Justus Liebig University Giessen, Germany.
Tears in the glenohumeral joint capsule can cause ganglion cysts within nerves. This report details the first two axillary intraneural ganglion cyst cases, identified via MRI, supporting the articular theory.
Area of Science:
- Orthopedics
- Radiology
- Neurology
Background:
- Joint capsule tears can lead to extraneural (paralabral) and rare intraneural ganglion cysts.
- Intraneural ganglion cysts are fluid-filled sacs developing within a nerve.
- The articular theory suggests these cysts arise from intra-articular joints.
Observation:
- This report presents two novel cases of axillary intraneural ganglion cysts.
- Cases were incidentally discovered during magnetic resonance imaging (MRI) studies.
- Coexisting lesions included lymphadenopathy and suprascapular nerve entrapment.
Findings:
- The first documented instances of axillary intraneural ganglion cysts visualized with MRI.
- Demonstrates the presence of intraneural ganglion cysts in the axillary nerve.
- Highlights the association of these cysts with other pathologies.
Implications:
- Reinforces the validity of the articular theory for intraneural ganglion cyst formation.
- Expands the known anatomical locations for intraneural ganglion cysts.
- Suggests MRI is valuable for diagnosing these rare nerve-related cysts.
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