Related Experiment Videos
[Intraforaminal lumbosacral neurinoma]
T Kato1, B George, K L Mourier
1Service de Neuro-Chirurgie, Hôpital Lariboisière, Paris.
Neuro-Chirurgie
|January 1, 1991
Summary
Intra-foraminal lumbosacral neurinomas, rare tumors, are now easily diagnosed with advanced imaging. Surgical removal offers a high chance of preserving the nerve root, improving patient outcomes.
Area of Science:
- Neurosurgery
- Oncology
- Radiology
Context:
- Intra-foraminal lumbosacral neurinomas are rare spinal tumors.
- Diagnosis can be delayed due to non-specific symptoms like radiculalgia.
- Advanced imaging techniques like CT and MRI have improved diagnostic accuracy.
Purpose:
- To report on the characteristics and management of intra-foraminal lumbosacral neurinomas.
- To evaluate surgical outcomes, focusing on nerve root preservation.
- To highlight the diagnostic advancements in identifying these rare tumors.
Summary:
- Twelve cases of intra-foraminal lumbosacral neurinomas (9 schwannomas, 2 neurifibromas, 1 melanotic schwannoma) were analyzed.
- Tumors were classified by extension: Type II (intra-foraminal), Type I-II (subarachnoid extension), Type II-III (spinal extension).
- Mean age was 49.5 years with a 5.2-year diagnostic delay; radiculalgia was the most common symptom.
Impact:
- Microsurgery enables tumor dissection within the perineural sheath, preserving the nerve root in most cases (8/12).
- Nerve root division was necessary in 4 cases (neurofibromas, large tumors) without significant post-operative deficits.
- Early identification and surgical intervention with nerve root preservation are key to successful treatment of these rare tumors.