Geyser Sign
Other Names
- Geyser Sign
Introduction
- Rare but finding associated with chronic rotator cuff tear and advanced degenerative changes
- Characterized by a supraclavicular joint effusion above the acromioclavicular joint
- Contrast or joint fluid can flow from the glenohumeral joint superiorly to form a supraclavicular effusion
Clinical Presentation
- Can present as a slow growing 'pseudotumor' about the acromioclavicular joint
- Classically slow growing
- Patients may express concern for malignancy/ tumor
Radiology
Radiographs
- Soft tissue swelling above the AC joint can be seen
- Additional findings
- High riding humeral head is usually present implying a chronic rotator cuff tear
Ultrasound
- Hypoechoic fluid collection above acromioclavicular joint
- Additional findings
- Advanced degenerative changes of both the GH and AC joints
- Full thickness rotator cuff tear
- Bare humeral head sign
MRI
- T2 hyperintense fluid tracking from the GH joint, into the subdeltoid bursa and the AC joint
- Additional findings
- Advanced degenerative changes
- Full thickness rotator cuff tear
Arthrography
- Following injection of contrast into the glenohoumeral joint
- Solution extends into the subdeltoid bursa and the AC joint
Pathology
Evidence
- Unknown
See Also
Internal
External
References
- ↑ Murena, Luigi, et al. "Surgical treatment of an aseptic fistulized acromioclavicular joint cyst: a case report and review of the literature." Cases Journal 2 (2009): 1-4.
- ↑ Case courtesy of Maulik S Patel, Radiopaedia.org, rID: 160177
- ↑ Case courtesy of Maulik S Patel, Radiopaedia.org, rID: 57765
- ↑ Case courtesy of Christof Igler, Radiopaedia.org, rID: 53907