Ganglion cyst of the cruciate ligament with atlantoaxial subluxation.
BACKGROUND
Ganglion cysts of the cruciate ligament are rare and sometimes asymptomatic. The authors present three cases of ganglion cysts of the cruciate ligament with atlantoaxial subluxation, which has rarely been reported previously.


METHODS
Generally, ganglion cysts of the cruciate ligament are reported as case reports. Several theories regarding the process of cyst formation and the development of treatment options have been described. However, trans-oral decompression with total removal of the cyst may be one of the options for treatment of this kind of disease.


RESULTS
A retrospective review of three patients, two female and one male patient, with a mean age of 68 years was conducted. The operation performed was a trans-oral decompression with cyst removal for all patients. Clinical outcomes were evaluated after the operation. All patients underwent trans-oral decompression with total removal of the cyst, followed by posterior fusion and pathologic examination of the cyst, revealing myxoid stroma with an absence of synovial linings.


CONCLUSIONS
The ganglion cysts and synovial cysts of the cruciate ligament are two different diseases with different presentation, pathogenesis, pathophysiology, and pathologic findings.
Department of Neurosurgery, Chang Gung Memorial Hospital, Taipei, Taiwan.
Ching-Yi
CY
Lee
Hung-Yi
HY
Lai
Shih-Tseng
ST
Lee
D000368:Aged; D019299:Decompression, Surgical / Q000379:methods; D005260:Female; D045888:Ganglion Cysts / Q000473:pathology / Q000601:surgery*; D006801:Humans; D008022:Ligaments / Q000601:surgery*; D008297:Male; D012189:Retrospective Studies; D013581:Synovial Cyst / Q000473:pathology / Q000601:surgery*; D016896:Treatment Outcome; D021801:Zygapophyseal Joint / Q000473:pathology / Q000601:surgery