Spinal Tumors
Complete Guide to Classification, Diagnosis, and Treatment
Spinal tumors are abnormal growths of cells that develop in the spine or spinal cord. Although the diagnosis can cause anxiety, it is essential to understand that many spinal tumors are treatable with excellent outcomes when they are diagnosed early and treated by an experienced specialist.
Dr. Ernesto Martínez de la Maza | Specialist in Intramedullary Tumors
Neurosurgery • Spine Surgery
💚 A Message of Hope
If you or a loved one has received a diagnosis of a spinal tumor, I want you to know that there is hope and there is treatment. Advances in neurosurgery, microsurgical techniques, and neurophysiological monitoring have transformed the prognosis of many spinal tumors. My specialization in intramedullary tumors has allowed me to help numerous patients regain their neurological function and quality of life. You are not alone on this journey.
Classification by Anatomical Location
Spinal tumors are classified according to their location relative to the spinal cord and the membranes that protect it (the dura mater). This classification is essential because it determines the symptoms, treatment, and prognosis.
Intramedullary Tumors
Grow WITHIN the spinal cord
My Main SpecializationMain Types:
- Ependymoma
(60% of intramedullary tumors)
Arises from cells lining the central canal of the spinal cord. Generally benign and with an excellent prognosis after complete resection. - Astrocytoma
(30-35% of intramedullary tumors)
Arises from astrocytes. They can be low-grade (better prognosis) or high-grade (more aggressive). - Hemangioblastoma
(3-8% of intramedullary tumors)
Benign vascular tumors. Surgical cure in >95% of cases. Associated with Von Hippel-Lindau syndrome. - Ganglioglioma
(Rare in adults)
Mixed neuronal-glial tumor, generally low-grade and with a good prognosis. - Intramedullary Lipoma
(Very rare)
Benign tumor of adipose tissue. Frequently congenital.
Intradural Extramedullary Tumors
Inside the dura mater but OUTSIDE the spinal cord
Main Types:
- Spinal Meningioma
(25-46% of this category)
Arise from the meninges. Benign in >95% of cases. More common in women (3:1) and in the thoracic region. - Schwannoma (Neurinoma)
(29-40% of this category)
Arise from the Schwann cells of nerve roots. Benign, encapsulated, with an excellent prognosis. - Neurofibroma
(Less frequent)
Similar to schwannomas but more associated with neurofibromatosis type 1. They can be multiple. - Filum Terminale Ependymoma
(Rare)
Ependymoma that grows in the filum terminale (the lower end of the spinal cord). Generally myxopapillary.
Extradural Tumors
OUTSIDE the dura mater, in the epidural space
Main Types:
- Epidural Metastases
(95% of extradural tumors)
Malignant tumors that have spread from other organs. Most common: breast, prostate, lung, kidney, thyroid. - Epidural Lymphoma
(Less common)
Can be primary or secondary. Responds well to radiation therapy and chemotherapy in combination with surgery. - Multiple Myeloma
(Variable)
Plasma cell cancer that frequently affects the spine. It can cause pathological fractures. - Epidural Sarcomas
(Rare)
Malignant soft-tissue tumors in the epidural space.
Vertebral Tumors
In the vertebral BONE (body, arches, processes)
Main Types:
- Vertebral Metastases
(85-90% of vertebral tumors)
Spread of cancer to the vertebral bone. They can cause pathological fractures and spinal cord compression. - Vertebral Hemangioma
(10% of the general population)
Benign vascular tumors of the vertebral body. Most are asymptomatic; they rarely cause compression. - Osteoblastoma
(Rare, benign)
Benign tumor but locally aggressive. More common in the posterior vertebral arches. - Osteoid Osteoma
(Rare, benign)
Small benign tumor that causes characteristic nighttime pain that improves with aspirin. - Chordoma
(Rare, malignant)
Low-grade malignant tumor that arises from notochord remnants. More common in the sacrum and clivus. - Chondrosarcoma
(Rare, malignant)
Malignant tumor of cartilage. More common in the cervical spine and ribs. - Osteosarcoma
(Very rare)
Aggressive malignant bone tumor. Rare in the spine except as a metastasis or after prior radiation therapy.
Symptoms of Spinal Tumors
Symptoms vary depending on the location and size of the tumor, but there are common signs that should signal the need for an urgent neurosurgical evaluation.
Progressive Pain
Back or neck pain that progressively worsens, especially at night. It does not improve with rest and may wake the patient.
Muscle Weakness
Progressive loss of strength in the arms or legs. Difficulty walking, holding objects, or climbing stairs that worsens over time.
Loss of Sensation
Numbness or tingling that progresses. Loss of sensation to touch, temperature, or pain in a specific pattern of the body.
Balance Disturbance
Difficulty maintaining balance, frequent falls, a sense of instability when walking, or a "spastic gait."
Sphincter Dysfunction
Problems controlling the bladder or bowel. Urinary urgency, retention, or incontinence. AN EMERGENCY SYMPTOM.
Systemic Symptoms
Unexplained weight loss, persistent fever, extreme fatigue. More common in malignant tumors or metastases.
Detailed Comparison by Tumor Type
| Characteristic | Intramedullary | Intradural Extramedullary | Extradural | Vertebral |
|---|---|---|---|---|
| Frequency | 4-10% of CNS tumors | 60-70% of primary spinal tumors | 55-60% of all spinal tumors | Variable depending on type |
| Typical Age | 30-50 years (ependymomas) 20-40 years (astrocytomas) |
50-70 years (meningiomas) 30-60 years (schwannomas) |
40-70 years (metastases) | Variable depending on primary type |
| Progression | Slow (months to years) | Very slow (years) | Rapid to moderate (weeks to months) | Variable |
| Initial Pain | Diffuse, poorly localized, progressive | Initially unilateral radicular | Localized, nocturnal, severe | Localized in the spine, mechanical |
| Motor Symptoms | Progressive symmetric bilateral weakness | Initially unilateral weakness, then bilateral | Rapidly progressive bilateral weakness | Variable depending on compression |
| Sensory Symptoms | Sensory dissociation (loss of temperature/pain, preservation of touch) | Radicular pattern that progresses to a spinal cord level | Clear sensory level below the tumor | Variable |
| Primary Treatment | Open microsurgical surgery with myelotomy | Open surgery with complete resection | Decompressive surgery + radiation therapy/chemo | Surgery + adjuvant therapy depending on type |
| Monitoring Required | Advanced IONM (MEPs, SSEPs, EMG) essential | IONM recommended, especially in the cervical region | IONM useful but less critical | Variable |
| Complete Resection | 60-80% depending on type (ependymomas >90%) | >95% (meningiomas and schwannomas) | Goal: decompression, not cure | Variable, sometimes requires vertebrectomy |
| Surgical Risk | Higher: direct manipulation of the spinal cord | Moderate: displacement of the spinal cord | Moderate: urgent decompression | Variable depending on extent |
| Overall Prognosis | Good to excellent with early resection | Excellent: >90% surgical cure | Variable: depends on the primary tumor | Variable depending on malignancy |
| Recurrence | 10-20% (ependymomas <5% with complete resection) | <5% with complete resection | Depends on control of the primary tumor | Variable |
Complete Diagnostic Process
Accurate diagnosis of spinal tumors requires a systematic evaluation that combines clinical history, neurological examination, and advanced imaging studies.
Detailed Clinical History
Chronology of symptoms, characteristics of the pain, factors that improve or worsen it, history of prior cancer.
Complete Neurological Examination
Assessment of muscle strength, reflexes, sensation, gait, coordination, and sphincter function.
MRI with Contrast
The gold-standard study. It shows the exact location, size, relationship with the spinal cord, and contrast enhancement.
Complementary Studies
CT scan for bone evaluation, PET-CT if metastasis is suspected, myelogram in select cases, and studies of the primary tumor.
Treatment Approaches
Treatment depends on the specific type of tumor, its location, the patient's neurological status, and whether it is benign or malignant. Learn more about the spinal tumor surgery I perform.
Surgical Treatment
Goals of Surgery:
- Complete resection of the tumor (if possible without causing a deficit)
- Decompression of the spinal cord and nerve roots
- Obtaining tissue for a definitive histopathological diagnosis
- Preservation or restoration of neurological function
Specific Techniques:
- Intramedullary Tumors: Wide laminectomy, dural opening, longitudinal myelotomy, microsurgical resection under advanced neurophysiological monitoring ( resection with intraoperative neuromonitoring )
- Intradural Extramedullary: Laminectomy, dural opening, tumor resection while preserving functional nerve roots
- Extradural: Urgent decompressive laminectomy, resection of the epidural tumor, stabilization if there is instability
- Vertebral: Corpectomy/vertebrectomy, reconstruction with expandable cages, anterior and posterior instrumented fixation
Adjuvant Treatments
Radiation Therapy:
- Stereotactic (SRS): For small tumors, metastases, residual schwannomas
- 3D Conformal or IMRT: For tumors that cannot be completely resected
- Palliative: For multiple metastases or patients who are not surgical candidates
Chemotherapy:
- High-grade astrocytomas (glioblastomas)
- Spinal lymphomas (highly chemosensitive)
- Metastases from chemosensitive tumors
- Medulloblastomas (rare in the spinal cord)
Targeted Therapies and Immunotherapy:
- VEGF inhibitors for hemangioblastomas in Von Hippel-Lindau
- BRAF/MEK inhibitors for astrocytomas with mutations
- Immunotherapy for tumors with a high mutational burden. Learn more about the adjuvant treatments for spinal tumors
Why Intramedullary Tumors Require a Specialist
Intramedullary tumors represent the greatest technical challenge in spine neurosurgery. Unlike other spinal tumors that can be "separated" from the spinal cord, intramedullary tumors grow WITHIN the functional nerve tissue of the spinal cord, requiring an extremely precise microsurgical technique to distinguish and separate the tumor from the healthy nerve tissue that must be preserved.
My specialization in these tumors has allowed me to perform these complex surgeries with successful outcomes, preserving or improving neurological function in the vast majority of my patients. The key lies in the combination of experience, advanced technology, and a commitment to surgical excellence. If you wish, learn about Dr. Martínez de la Maza's training.
🔬 Microsurgical Technique
Use of a high-power microscope for extreme magnification and visualization of each nerve fascicle, allowing precise millimeter-level dissection between the tumor and the spinal cord.
📊 Advanced Monitoring
Real-time motor and somatosensory evoked potentials that immediately alert us to any neurological compromise during surgery.
🎯 Specialized Experience
Years of specific training in intramedullary tumors, regularly performing these complex surgeries that many neurosurgeons only see occasionally.
Prognosis and Realistic Expectations
✅ Excellent Prognosis
These tumors have a high probability of surgical cure or long-term control:
- Ependymomas:>90% tumor-free at 10 years with complete resection. Excellent prognosis.
- Spinal meningiomas:>95% cure with complete resection. Recurrence <5%.
- Schwannomas:>98% surgical cure. Rarely recurrent.
- Hemangioblastomas:>95% cure with complete resection. Monitor for Von Hippel-Lindau.
- Pilocytic astrocytomas (Grade I): Excellent prognosis with maximal safe resection.
⚠️ Variable or Guarded Prognosis
These tumors require multimodal treatment and close follow-up:
- Diffuse astrocytomas (Grade II-III): Guarded prognosis. They require surgery + radiation therapy. Close follow-up.
- Intramedullary glioblastomas: Rare but aggressive. Poor prognosis despite aggressive treatment.
- Spinal metastases: Depends entirely on the primary tumor and its extent. Goal: preserve neurological function and quality of life.
- Chordomas: Low-grade tumors but locally aggressive. They require wide resection + radiation therapy. Frequent recurrence.
- Chondrosarcomas: Similar to chordomas. Complete resection is difficult. Long-term follow-up is necessary.
🚨 Warning Signs: When to Seek Urgent Neurological Care
Progressive Weakness
Loss of strength in the arms or legs that worsens each day or week. Increasing difficulty walking, climbing stairs, or holding objects.
Severe Nighttime Pain
Back or neck pain that wakes you at night, does not improve with common pain relievers, and progressively worsens.
Loss of Sphincter Control
Difficulty controlling the bladder or bowel, urinary retention, urgency, or incontinence. A NEUROLOGICAL EMERGENCY.
Ascending Numbness
Loss of sensation that progresses from the feet upward, or a clear level below which there is no sensation.
History of Prior Cancer
Any new spine symptom in a patient with a history of cancer, even if it was "cured" years ago. Urgent evaluation.
Neurological Symptoms + Systemic Symptoms
A combination of back pain with fever, unexplained weight loss, night sweats, or extreme fatigue.
A Diagnosis Is Not a Sentence
If you have been diagnosed with a spinal tumor, I want you to understand something fundamental: early diagnosis and treatment by an experienced specialist can completely change the prognosis. I have had the privilege of treating numerous patients with intramedullary tumors who arrived with significant weakness and pain, and who, after surgery, regained their function and quality of life.
Benign tumors such as ependymomas, meningiomas, and schwannomas have cure rates above 90% with appropriate surgery. Even the most complex tumors can be treated effectively when expert surgery, advanced technology, and adjuvant therapies are combined when necessary.
My commitment is to provide you not only with the most advanced surgical technique, but also with the honesty, time, and attention that you and your family deserve during this difficult time. You will not face this alone. I offer care for international patients who travel to Mexico.
This information is educational and does not replace a personalized medical consultation. Each spinal tumor is unique and requires individual evaluation by a neurosurgeon specialized in spinal tumors. The prognosis varies according to multiple factors, including the exact histological type of the tumor, its location, size, neurological status at the time of diagnosis, and patient characteristics.
Preguntas Frecuentes
¿Qué es un tumor espinal y cuáles son los síntomas más comunes?
Un tumor espinal es un crecimiento anormal de células en la médula espinal o en las estructuras que la rodean, como las vértebras. Es fundamental entender que no todos los tumores son cancerosos; muchos son benignos.
Los síntomas pueden variar dependiendo de la ubicación y el tamaño del tumor, pero algunos de los más comunes incluyen:
Dolor de espalda persistente: A menudo descrito como un dolor que no mejora con el descanso e incluso puede empeorar por la noche.
Debilidad o entumecimiento: Sensación de debilidad, hormigueo o pérdida de sensibilidad en brazos o piernas.
Dificultad para caminar: Problemas de equilibrio o coordinación que pueden llevar a caídas.
Cambios en la función de la vejiga o el intestino: Dificultad para controlar la micción o las deposiciones.
Si experimenta alguno de estos síntomas de manera persistente, es crucial buscar una evaluación médica para obtener un diagnóstico preciso.
¿Todos los tumores en la columna vertebral son cáncer?
No, y esta es una de las preocupaciones más importantes que aclaramos a nuestros pacientes. Los tumores espinales se clasifican en dos grandes grupos:
Benignos (no cancerosos): Estos tumores no se propagan a otras partes del cuerpo.Aunque no son malignos, pueden causar problemas al presionar la médula espinal o los nervios.
Malignos (cancerosos): Estos pueden originarse en la propia columna (primarios) o haberse diseminado desde otro lugar del cuerpo (metastásicos).Los tumores metastásicos son más comunes que los primarios.
Un diagnóstico preciso es esencial para determinar la naturaleza del tumor y el plan de tratamiento más adecuado
¿Cómo se diagnostica un tumor espinal?
El diagnóstico de un tumor espinal es un proceso cuidadoso que comienza con una historia clínica detallada y una exploración neurológica completa.Para confirmar la presencia y características del tumor, se utilizan estudios de imagen avanzados. La Resonancia Magnética (RM) es la herramienta más importante y precisa, ya que nos permite ver con gran detalle la médula espinal, los nervios y los tejidos circundantes para definir la ubicación exacta y el tamaño del tumor.
En algunos casos, se pueden solicitar otros estudios como una Tomografía Computarizada (TC) o una biopsia, que consiste en tomar una pequeña muestra del tejido para analizarla y determinar el tipo exacto de tumor.
¿Cuál es el tratamiento para un tumor espinal? ¿Siempre se necesita cirugía?
El tratamiento depende de múltiples factores: el tipo de tumor (benigno o maligno), su ubicación, el tamaño y su estado de salud general. No todos los casos requieren cirugía inmediata. Las opciones de tratamiento pueden incluir:
Observación: Para tumores pequeños y benignos que no causan síntomas, podemos optar por un seguimiento periódico con Resonancias Magnéticas.
Cirugía: Es el tratamiento más común, especialmente para tumores que comprimen la médula espinal. El objetivo es extirpar la mayor cantidad posible del tumor sin dañar las estructuras nerviosas. La microcirugía y el monitoreo neurofisiológico durante la operación son tecnologías clave que aumentan la seguridad y precisión del procedimiento.
Radioterapia: Utiliza radiación de alta energía para destruir las células tumorales o impedir su crecimiento.
Quimioterapia: Se emplea en ciertos tipos de tumores cancerosos, a menudo en combinación con otros tratamientos.
El plan de tratamiento es siempre personalizado y se discute detalladamente con usted, buscando la mejor calidad de vida posible.
¿Qué son los tumores intramedulares y por qué requieren un manejo tan especializado?
Los tumores intramedulares son un tipo específico de tumor espinal que crece dentro de la propia médula espinal. Son menos comunes que otros tumores espinales, pero representan un desafío quirúrgico significativo debido a su delicada ubicación.
La médula espinal es el centro de transmisión de todas las señales nerviosas del cerebro al resto del cuerpo. Por lo tanto, la extirpación de un tumor intramedular exige una precisión y experiencia técnica muy elevadas para preservar la función neurológica. La cirugía de estos tumores, como los ependimomas o astrocitomas, se realiza bajo microscopio y con un monitoreo constante de las funciones nerviosas para minimizar los riesgos y lograr los mejores resultados posibles para el paciente. Es un área donde la experiencia del neurocirujano es absolutamente crucial.