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Vertebra collapse due to primary amyloidosis causing neurological compromise
Hiroyuki Yoshihara1, Kenya Nojiri, Mariko Yabe
1NYU Hospital for Joint Diseases, New York, New York, USA. hiroyoshihara55@yahoo.co.jp
Abstract:
In primary amyloidosis (AL), a fibrillar protein (amyloid light chain) is deposited in many organs; however, it is rare to have involvement of the vertebral bodies. Multiple myeloma is a well-known systemic amyloid disease that frequently has vertebral involvement. However, the pathology of vertebral involvement of these two clinical entities differs significantly. We report a patient with L4 vertebral collapse because of primary AL, causing neurological compromise that improved with surgical treatment. Deposition of amyloid and following demineralisation caused the vertebral collapse. Primary AL needs to be taken into consideration as a cause of pathological vertebral fracture.
Insights
Primary amyloidosis (AL) can cause vertebral collapse due to amyloid deposition, a rare but serious complication. This case highlights the importance of considering AL amyloidosis in patients with pathological vertebral fractures.
Area of Science:
- Nephrology
- Hematology
- Orthopedic Surgery
Background:
- Primary amyloidosis (AL) involves amyloid light chain deposition in organs, but vertebral involvement is uncommon.
- Multiple myeloma, a related systemic amyloid disease, often presents with vertebral involvement, differing pathologically from AL amyloidosis.
- Pathological vertebral fractures can lead to neurological compromise.
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