Related Experiment Video
Updated: Aug 23, 2025

Imaging Features of Systemic Sclerosis-Associated Interstitial Lung Disease
Published on: June 16, 2020
Thoracic synovial cyst in patient with diffuse idiopathic skeletal hyperostosis
Shu Takeuchi1, Junya Hanakita1, Toshiyuki Takahashi1
1Spinal Disorders Center, Fujieda Heisei Memorial Hospital, Fujieda, Japan.
Background:
Spinal synovial cysts, attributed to degenerative changes of the facet joints, commonly occur at the sites of segmental spinal instability. Here, we present a patient with diffuse idiopathic skeletal hyperostosis (DISH) who developed a T10/T11 synovial cyst contributing to myelopathy that resolved following surgical cyst excision.
Case Description:
A 69-year-old male presented with progressive numbness and paraparesis for 2-month duration. The thoracic MR spine showed synovial cyst at the T10/T11 level, while the computed tomography confirmed DISH fusion between the T4 and T10 levels. Following a laminectomy with cyst excision, the patient's symptoms resolved and he sustained no recurrent dynamic instability.
Conclusion:
A patient with DISH presented with the new onset of myelopathy attributed to a T10/T11 thoracic synovial cyst; following cyst excision, the patient's myelopahty resolved.
Related Concept Videos
The Thoracic Cage: Ribs
Parts of a Typical Rib
A typical rib has a head, neck, and body. The posterior end of the rib is called the head, followed by a narrow neck. The head articulates primarily with the costal...
The Thoracic Cage: Sternum
The sternum is the elongated bony structure on the anterior side of the thoracic cage. It consists of three parts: the manubrium, the body, and the xiphoid...
Pleural Effusion I: Introduction
There are two main types of pleural effusion: transudative and exudative. They are differentiated using Light's...
Thoracic Aorta
Pleural Effusion II: Symptoms and Management
A pleural effusion is the abnormal collection of fluid between the parietal and visceral pleura layers of tissue that form the lining of the lungs and chest cavity. It can occur independently or due to surrounding parenchymal diseases, such as infection, malignancy, or inflammatory conditions.
Clinical Manifestations:
Disorders of the Skeletal Muscle
Musculoskeletal disorders
Musculoskeletal disorders involve injuries and conditions affecting the skeletal muscles and associated connective tissues. These disorders can arise from acute biomechanical stresses or chronic overuse and can occur across different age groups. Common injuries include sprains, fractures, and muscular strains, often resulting from...

