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Vol. 17. Issue 2.
Pages 125-131 (January 2006)
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Vol. 17. Issue 2.
Pages 125-131 (January 2006)
Meningiomas espinales
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M. Gelabert-González
, A. García-Allut, R. Martínez-Rumbo
Servicio de Neurocirugía. Hospital Clínico Universitario. Departamento de Cirugía. Universidad de Santiago de Compostela
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Resumen
Objetivos

Analizar la incidencia, presentación clínica, hallazgos radiológicos, localización, tratamiento y resultados operatorios de los meningiomas espinales.

Pacientes y método

Estudio retrospectivo sobre 57 meningiomas espinales en 55 pacientes operados entre Enero de 1980 y Junio de 2004. Analizamos la edad, sexo, síntomas de debut y duración de los mismos, características radiológicas, técnica quirúrgica, estudios histológicos y resultados.

Resultados

La serie consta de 55 pacientes (46 mujeres y 9 varones), con edades comprendidas entre 12 y 84 años (media 65.2±9.2). El síntoma de debut más frecuentes fue el déficit motor en 34 casos (61.8%) y la duración media de la sintomatología antes del diagnóstico de 6.2 meses. La distribución a lo largo del raquis mostró 51 casos en la región dorsal, 5 cervicales y 1 lumbar. El tipo histológico más frecuente fue el meningotelial (N=31, 54.3%).

Conclusiones

Los meningiomas espinales constituyen en nuestra experiencia el 46% de todos los tumores intradurales extramedulares y el 7.5% de todos los meningiomas. Afectan sobre todo a mujeres y en la mayoría de los casos se ubican en la región dorsal. Su localización habitual es intradural extramedular y se desarrollan lentamente extendiéndose lateralmente por el espacio subaracnoideo. La resonancia magnética es la técnica diagnóstica de elección y la resección quirúrgica completa conduce a una recuperación total en la mayoría de los casos.

Palabras clave:
Cirugía espinal
Laminectomía
Meningioma
Resonancia magnética
Tumor espinal
Summary
Objective

To present the incidence, clinical presentation, radiological features, localization, surgical techniques, and long term results of surgically treated spinal meningiomas.

Patients and methods

We review retrospectively 57 spinal meningiomas in 55 patients operated between January 1980 and june 2004. Age, sex, duration and type of symptoms, radiological and surgical results, histological features and long term outcome are analyzed.

Results

Fifty five patients, consisting 46 females and 9 males, with an age range from 12 to 84 years (mean 65.2±9.2) were identified. The first symptom was motor deficit (N=34, 61.8%) and the mean duration symptoms were: 6.2 months. Distribution along the spinal axis was 51 thoracic, 5 cervical and 1 lumbar. The most common type was meningothelial (N=31, 54.3%).

Conclusions

Meningiomas account in our experience, the 46% of spinal cord tumours and account the 7.5% of all meningiomas. They are more frequent in females most frequently occur in the thoracic region and have low recurrence rate. Typically, they are located in the intradural extramedullary space, grow slowly, and spread laterally in the subarachnoid space. Finally we concluded that magnetic resonance imaging is the best imaging technique for diagnosis and total tumour resection improved the surgical results of spinal meningiomas.

Keywords:
Laminectomy
Magnetic resonance imaging
Meningioma
Spinal surgery
Spinal tumour

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