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Familial spinal xanthomatosis with sitosterolemia
H Hidaka1, H Yasuda, M Kobayashi
1Third Department of Medicine, Shiga University of Medical Science, Japan.
Internal Medicine (Tokyo, Japan)
|August 1, 1992
Summary
Sitosterolemia, a rare inherited metabolic disorder, can cause spinal xanthomas and tumors. This study details a family with this condition, highlighting the first reported familial occurrence of multiple extramedullary spinal tumors linked to sitosterolemia.
Area of Science:
- Genetics
- Metabolic Disorders
- Neurology
Background:
- Sitosterolemia is a rare inherited disorder of lipid metabolism characterized by excessive absorption and accumulation of plant sterols.
- Familial xanthomatosis and premature atherosclerosis are common manifestations.
- Neurological complications, particularly spinal tumors, are not typically associated with sitosterolemia.
Observation:
- A family presented with multiple spinal xanthomas and diagnosed sitosterolemia.
- The proband, a 48-year-old woman, experienced paraplegia due to multiple intradural extramedullary spinal tumors.
- Two siblings had tendon xanthomas and coronary atherosclerosis, with two exhibiting spinal tumors on MRI.
Findings:
- This is the first report describing familial occurrence of multiple extramedullary spinal tumors.
- The spinal tumors in this family are linked to the inherited metabolic abnormality of sitosterolemia.
- Sitosterolemia can manifest with diverse clinical presentations, including neurological involvement.
Implications:
- This finding expands the known clinical spectrum of sitosterolemia.
- Highlights the importance of considering inherited metabolic disorders in the differential diagnosis of spinal tumors.
- Suggests a potential genetic link between sitosterolemia and the development of extramedullary spinal tumors.