Related Experiment Videos
Primary bone lymphoma: polyostotic disease presenting as a cauda equina syndrome
Leire Ortiz-Fernandez1, Belen Sainz-Berrio, Fernando Perez-Ruiz
1Rehabilitation Division, Cruces Hospital, Barakaldo, Spain. leireor@hotmail.com
Summary
This case study highlights a rare B-cell primary bone lymphoma affecting multiple vertebrae, leading to rapid cauda equina syndrome. Early symptoms of low-back pain responded temporarily to corticosteroids.
Area of Science:
- Oncology
- Neurology
- Orthopedics
Background:
- Primary bone lymphoma is a rare malignancy, typically affecting a single vertebra.
- B-cell lymphoma is an uncommon subtype of primary bone lymphoma.
- Cauda equina syndrome is a serious neurological condition often requiring urgent intervention.
Observation:
- A patient presented with subacute low-back pain, initially responsive to corticosteroid treatment.
- Magnetic resonance imaging revealed involvement of multiple vertebrae.
- The patient rapidly developed cauda equina syndrome.
Findings:
- The diagnosis was confirmed via open biopsy, identifying B-cell primary bone lymphoma.
- The case presented with multifocal vertebral involvement at onset, atypical for this condition.
- Radicular syndromes as an initial symptom of lymphoma are exceptionally rare, particularly for B-cell types.
Implications:
- This case underscores the importance of considering rare diagnoses in persistent or rapidly progressing back pain.
- Early recognition and biopsy are crucial for timely diagnosis and management of primary bone lymphoma.
- Multifocal vertebral involvement and neurological compromise highlight the aggressive potential of this rare malignancy.
Related Concept Videos
Secondary Spinal Cord Injury llI: Pathophysiology
Early Ischemia and Ionic ImbalanceWithin minutes of spinal cord injury, a secondary cascade begins, progressing over hours to weeks. Vascular damage reduces blood flow, causing ischemia and mitochondrial dysfunction. ATP depletion leads to ion pump failure, membrane depolarization, sodium influx, potassium efflux, and water accumulation, resulting in cellular swelling. Increased intracellular calcium further disrupts mitochondria and accelerates cellular injury.Excitotoxicity and Neuronal...
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...
Blood and Nerve Supply to the Bones
Bones are dynamic organs that require a rich supply of oxygen and nutrients. Around 5% to 10% of the cardiac output supplies blood to the bones. A typical long bone has three main sources: the nutrient artery, the metaphyseal and epiphyseal arteries, and the periosteal arteries.
Nutrient Artery
The nutrient artery is the main blood vessel that enters the diaphysis via the nutrient foramen. While most long bones have only one nutrient foramen, large bones, such as the femur, may have two. This...
Nutrient Artery
The nutrient artery is the main blood vessel that enters the diaphysis via the nutrient foramen. While most long bones have only one nutrient foramen, large bones, such as the femur, may have two. This...
Cushing Syndrome II: Pathophysiology
Cortisol production is normally governed by the hypothalamic–pituitary–adrenal (HPA) axis, which maintains hormonal balance through tightly regulated feedback mechanisms. Disruption of this regulatory system is central to the development of Cushing syndrome, whether the excess cortisol originates from external medications or internal pathology. Persistent cortisol elevation alters metabolism, immune function, and endocrine signaling, producing the characteristic clinical features of the...
Bone Disorders
Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...