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Updated: Aug 19, 2026

Comprehensive Autopsy Program for Individuals with Multiple Sclerosis
Published on: July 19, 2019
[Peculiarities of nervous system lesions in patients with multiple myeloma]
Abstract:
Multiple myeloma (MM) is B-cellular lymphoproliferative disease. We studied 174 patients aged 33-84 with established diagnosis of MM. Among the persons included into analyzed cohort the data about the presence of polyneuropathy at the moment of MM verification were available in 72 (41.4%) persons. Spinal cord involvement due to the various pathogenetic reasons was revealed in 24 (13.8 +/- 2.6%) patients. Compressional alteration was observed in 19 cases and in 5 patients the spinal cord involvement had uncompressional genesis. The connection between the peripheral polyneuropathy and the unfavourable prognosis in MM patients was statistically insignificant. In the patients with spinal cord prelum the probability of lethal outcome within 1 month was 0.26. It is 10 times more than in patients suffering only from peripheral polyneuropathy. Thus polyneuropathy in MM patients occurs in 41.4 +/- 3.7% cases and more often during the III stage of disease. There is a distinct interrelation between the nervous trunk involvement and disease severity. In the structure of polyneuropathy the sensorimotor variant (76.4 +/- 5.0%) prevails. According to our data the spinal cord involvement occurs in 13.8 +/- 2.6% cases.
Insights
Multiple myeloma (MM) patients frequently experience polyneuropathy (41.4%) and spinal cord involvement (13.8%). Spinal cord issues significantly increase mortality risk, unlike peripheral polyneuropathy alone.
Area of Science:
- Hematology
- Neurology
- Oncology
Context:
- Multiple myeloma (MM) is a B-cell lymphoproliferative disorder.
- Neurological complications, including polyneuropathy and spinal cord involvement, can affect MM patients.
- Understanding the prevalence and impact of these complications is crucial for patient management.
Purpose:
- To investigate the prevalence of polyneuropathy and spinal cord involvement in patients with multiple myeloma.
- To analyze the relationship between neurological involvement and disease severity or prognosis in MM.
- To determine the specific types and outcomes associated with neurological complications in MM.
Summary:
- This study analyzed 174 multiple myeloma patients, finding polyneuropathy in 41.4% and spinal cord involvement in 13.8%.
- Sensorimotor polyneuropathy was the most common type (76.4%).
- While peripheral polyneuropathy showed no significant prognostic link, spinal cord involvement was associated with a substantially higher short-term mortality risk (0.26 probability within 1 month).
Impact:
- Highlights the significant prevalence of neurological complications in multiple myeloma.
- Emphasizes the critical prognostic importance of spinal cord involvement in MM patients.
- Suggests a distinct interrelation between nervous system involvement and disease severity, impacting patient outcomes.
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