eMedicine Specialties > Emergency Medicine > Hematology & Oncology
Neoplasms, Spinal Cord: Differential Diagnoses & Workup
Updated: Jul 1, 2009
- Overview
- Differential Diagnoses & Workup
- Treatment & Medication
- Follow-up
- Multimedia
Differential Diagnoses
Other Problems to Be Considered
Abscess
Hematoma
Syrinx
Radiation myelopathy
Chemotherapy myelopathy
Paraneoplastic myelopathy
Neoplastic meningitis
Spinal arachnoiditis
Transverse myelitis
Central disk herniation
Spondylitic myelopathy
Disk-space infections
Diskitis
Workup
Laboratory Studies
- Laboratory studies are not generally helpful in establishing the diagnosis of spinal cord neoplasm.
- Marked elevation of the erythrocyte sedimentation rate suggests infection or inflammation.
- Patients with a suspected spinal cord neoplasm are at risk for additional oncologic insults. Routine blood workup typically includes analysis of the following: CBC; prothrombin time; activated partial thromboplastin time; and metabolic profile, including calcium level and liver function.
Imaging Studies
- MRI
- MRI of the affected area provides the best definition of spinal lesions and is the procedure of choice.
- With MRI, the entire spine may be visualized rapidly (sagittal images), and images may be obtained in multiple planes for best definition of the lesion, vertebrae, epidural space, and spinal cord. Roughly one third of people with spinal epidural metastases have multiple spinal metastases.
- MRI can usually be used to differentiate a collapsed vertebra secondary to osteoporosis or trauma from malignant disease.
- The intervertebral space is usually not involved in tumors of the spine. When the disk space is obliterated, infection is more likely.
- Diffusion-weighted MR imaging may be useful in evaluation of epidural neoplastic lesions.3
- If MRI cannot be performed, consult a qualified radiologist or oncologist about other imaging options (eg, intrathecal contrast-enhanced myelography, CT scan, nuclear medicine bone scanning).
- Plain radiography
- Plain radiographs may reveal bony destruction (osteolytic or osteoblastic lesions), vertebral collapse or subluxation, or calcification (associated with a meningioma). Roughly 50% of the bone must be destroyed to be visible on plain films.
- Conventional radiographs do not provide information about spinal cord structure or compression.
- Changes are demonstrated on plain films in about 80% of patients with spinal cord tumors. Conversely, findings on plain films are falsely negative in about 20% of cases.
- Nuclear medicine: Most tumors (excluding myeloma) exhibit increased activity on nuclear medicine scans.
Procedures
- Lumbar puncture
- Be cautious when considering a lumbar puncture; the presence of a spinal cord tumor is a relative contraindication to the performance of a lumbar puncture.
- Removal of cerebrospinal fluid in the presence of a tumor may worsen cord compression.
- In leptomeningeal metastasis, examination findings of the spinal fluid are almost always abnormal and reveal elevated protein levels and positive cytologic results.
- Post-void residual urine volume: Have the patient urinate and check the urinary residual volume by catheterization when bladder impairment is a concern. Volumes greater than 200 mL may suggest a neurogenic bladder.
More on Neoplasms, Spinal Cord |
| Overview: Neoplasms, Spinal Cord |
Differential Diagnoses & Workup: Neoplasms, Spinal Cord |
| Treatment & Medication: Neoplasms, Spinal Cord |
| Follow-up: Neoplasms, Spinal Cord |
| Multimedia: Neoplasms, Spinal Cord |
| References |
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References
Spinazze S, Caraceni A, Schrijvers D. Epidural spinal cord compression. Crit Rev Oncol Hematol. Dec 2005;56(3):397-406. [Medline].
Prasad D, Schiff D. Malignant spinal-cord compression. Lancet Oncol. Jan 2005;6(1):15-24. [Medline].
Plank C, Koller A, Mueller-Mang C, Bammer R, Thurnher MM. Diffusion-weighted MR imaging (DWI) in the evaluation of epidural spinal lesions. Neuroradiology. Dec 2007;49(12):977-85. [Medline].
Regine WF, Tibbs PA, Young A. Metastatic spinal cord compression: a randomized trial of direct decompressive surgical resection plus radiotherapy vs radiotherapy alone. Int J Radiat Oncol Biol Phys. 2003;57 (suppl 2):5125.
Cole JS, Patchell RA. Metastatic epidural spinal cord compression. Lancet Neurol. May 2008;7(5):459-66. [Medline].
Gilbert MR, Minhas TA. Epidural spinal cord compression and neoplastic meningitis. In: Johnson RT, ed. Current Therapy in Neurologic Disease. 1997:253-9.
Newton HB, Shah SML. Neurological syndromes and symptoms in the cancer patient: differential diagnosis, assessment protocols, and targeted clinical interventions. Emerg Med Rep. 1997;18:149-58.
Patten J. The spinal cord in relation to the vertebral column. In: Neurologic Differential Diagnosis. 1996:247-81.
Sansur CA, Pouratian N, Dumont AS, Schiff D, Shaffrey CI, Shaffrey ME. Part II: spinal-cord neoplasms--primary tumours of the bony spine and adjacent soft tissues. Lancet Oncol. Feb 2007;8(2):137-47. [Medline].
Schiff D. Spinal cord compression. Neurol Clin. Feb 2003;21(1):67-86, viii. [Medline].
Schiff D, O'Neill BP. Intramedullary spinal cord metastases: clinical features and treatment outcome. Neurology. Oct 1996;47(4):906-12. [Medline].
Schiff D, O'Neill BP, Suman VJ. Spinal epidural metastasis as the initial manifestation of malignancy: clinical features and diagnostic approach. Neurology. Aug 1997;49(2):452-6. [Medline].
Schmidt RD, Markovchick V. Nontraumatic spinal cord compression. J Emerg Med. Mar-Apr 1992;10(2):189-99. [Medline].
Traul DE, Shaffrey ME, Schiff D. Part I: spinal-cord neoplasms-intradural neoplasms. Lancet Oncol. Jan 2007;8(1):35-45. [Medline].
Further Reading
Keywords
spinal cord neoplasm, spinal cord tumor, neoplastic disease, spinal cord compression, primary spinal cord tumors, metastatic lesions, spinal cord dysfunction, spinal cord metastasis, epidural spinal cord compression, partial cord compression, Brown-Sequard syndrome, hemangiomas, scoliosis, torticollis, vertebral metastasis, leptomeningeal metastasis




Differential Diagnoses & Workup: Neoplasms, Spinal Cord