Foraminal Synovial Cyst Associated with Ankylosing Spondylitis.
10.3340/jkns.2011.50.1.54
- Author:
Heyun Sung KIM
1
;
Chang Il JU
;
Seok Won KIM
Author Information
1. Department of Internal Medicine, College of Medicine, Chosun University, Gwangju, Korea.
- Publication Type:Case Report
- Keywords:
Synovial cyst;
Ankylosing spondylitis
- MeSH:
Back Pain;
Fatigue;
Fractures, Compression;
Fractures, Stress;
Humans;
Kyphosis;
Leg;
Magnetic Resonance Spectroscopy;
Middle Aged;
Paresthesia;
Radiculopathy;
Spine;
Spondylitis, Ankylosing;
Synovial Cyst;
Vertebroplasty;
Zygapophyseal Joint
- From:Journal of Korean Neurosurgical Society
2011;50(1):54-56
- CountryRepublic of Korea
- Language:English
-
Abstract:
Ankylosing spondylitis (AS) is frequently associated with inflammatory lesions of the spine and continuous fatigue stress fractures; however, an association with an intraspinal synovial cyst has not been previously reported. A 55-year-old man with a five year history of AS who presented with back pain and a right radiculopathy was admitted to the hospital. Five years previously, he underwent a percutaneous vertebroplasty for an osteoporotic L1 compression fracture, and was diagnosed with AS at that time. Plain radiographs showed aggravated kyphosis and a stress fracture through the ossified posterior element, below the prior vertebroplasty. Magnetic resonance images revealed a right foraminal cystic lesion at the L2-L3 level with effacement of the nerve root. A 1.6 cm cystic lesion that appeared to arise from the L2-L3 facet joint without direct communication was excised from the L2-L3 foramen. Pathological examination confirmed synovial cyst. The patient's symptoms resolved immediately after surgery except for a mild dysesthesia of the right leg. We report herein a rare case of foraminal synovial cyst associated with AS accompanying posterior element fracture with a review of literature.
