Related Experiment Video
Updated: Jul 26, 2026

05:53
Intraoperative Ultrasound in Spinal Surgery
Published on: August 17, 2022
Diffuse vertebral body edema due to calcified intraspongious disk herniation
M A Rodacki1, C E S Castro, D S Castro
1Ecomax-Diagnóstico por Imagem, Blumenau, Santa Catarina, Brazil. remarkar.bnu@terra.com.br
Neuroradiology
|May 14, 2005
Summary
This case study highlights a rare instance of intervertebral disk herniation into the T9 vertebral body. Prompt diagnosis and conservative treatment led to a full recovery and normalization of MRI findings.
Area of Science:
- Radiology
- Orthopedics
- Neurosurgery
Background:
- Intervertebral disc herniation can present with varied imaging findings.
- Thoracic spine involvement is less common than lumbar or cervical.
- Differentiating disc herniation from other pathologies like tumors or infections is crucial.
Observation:
- A patient presented with high back pain and MRI findings suggestive of diffuse edema in the T9 vertebral body.
- MRI revealed intervertebral disc herniation into the spongious bone of T9, with characteristic signal intensities on FLAIR-T1W, T2W, T2W-FSIs, and T1W-FSIs.
- Plain films and CT scans were instrumental in identifying calcification within the herniated disc fragment.
Findings:
- The imaging findings mimicked tumoral or inflammatory processes due to bone marrow edema.
- Computed tomography confirmed a calcified intervertebral disc fragment migrating into the T9 vertebral body.
- Conservative treatment resulted in complete symptom resolution and normalized bone marrow signal intensity on follow-up MRI.
Implications:
- This case underscores the importance of integrating multiple imaging modalities for accurate diagnosis of thoracic spine pathologies.
- It demonstrates that conservative management can be effective for select cases of intervertebral disc herniation with vertebral body involvement.
- Recognizing the imaging spectrum of disc herniation is key to avoiding misdiagnosis and unnecessary interventions.
Related Concept Videos
Structural Joints: Cartilaginous Joints
As the name indicates, at a cartilaginous joint, the adjacent bones are united by cartilage, a tough but flexible type of connective tissue. Unlike synovial joints, these types of joints lack a joint cavity and involve bones joined together by either hyaline cartilage or fibrocartilage.
There are two types of cartilaginous joints:
Synchondrosis
A synchondrosis ("joined by cartilage") is a cartilaginous joint where bones are connected by hyaline cartilage. Synchondrosis may be temporary or...
There are two types of cartilaginous joints:
Synchondrosis
A synchondrosis ("joined by cartilage") is a cartilaginous joint where bones are connected by hyaline cartilage. Synchondrosis may be temporary or...
Cerebral Edema l: Introduction
Cerebral edema is a pathological increase in brain water content that disrupts intracranial pressure regulation and impairs neurological function. Because the cranial vault is rigid, even modest increases in tissue volume can compromise cerebral perfusion, distort neural structures, and initiate secondary injury. Cerebral edema develops through four principal mechanisms: vasogenic, cytotoxic, interstitial, and ionic.Vasogenic EdemaVasogenic edema arises from disruption of the blood–brain...
Cerebral Edema ll: Pathophysiology
Vasogenic edema is a major form of cerebral edema characterized by abnormal accumulation of fluid in the brain’s extracellular space due to disruption of the blood–brain barrier (BBB). The BBB is a specialized structure composed of endothelial cells connected by tight junctions, supported by astrocytic endfeet and a basement membrane. Under normal conditions, it tightly regulates the movement of ions, proteins, and solutes between the bloodstream and brain parenchyma. When this barrier loses...
Herniated Intervertebral Disc l: Introduction
Intervertebral disc herniation refers to the displacement of the nucleus pulposus (the gel-like inner core of the disc) through a tear or weakened area in the annulus fibrosus (the outer fibrous ring). The displaced disc material extends beyond the normal boundaries of the disc space and may compress or irritate nearby spinal nerve roots or, less commonly, the spinal cord.Etiology and Risk FactorsHerniation commonly results from degeneration, in which aging reduces disc hydration and...
Degenerative Disc Disease I: Introduction
Degenerative disc disease is a chronic condition in which intervertebral discs gradually lose structure and function. It is not infectious or autoimmune; rather, it results from age-related biochemical and mechanical changes, influenced by genetic, metabolic, and environmental factors.Structure and Function of DiscsThe spine contains 23 intervertebral discs that absorb load, distribute forces, maintain spacing, and allow flexibility. Each disc consists of a nucleus pulposus, a gel-like core...
Degenerative Disc Disease ll: Pathophysiology
The symptoms of degenerative disc disease arise from a combination of mechanical compression, vascular compromise, and biochemical inflammation, which together disrupt nerve function and produce pain.Mechanical CompressionDisc degeneration reduces height and elasticity, predisposing to herniation of the nucleus pulposus, a major cause of radicular pain. Herniations may be protrusion (bulging with intact annulus), extrusion (nucleus extends beyond disc but remains connected), or sequestration...

