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Neurology India
Medknow Publications on behalf of the Neurological Society of India
ISSN: 0028-3886
EISSN: 0028-3886
Vol. 51, No. 2, 2003, pp. 193-196
Bioline Code: ni03061
Full paper language: English
Document type: Research Article
Document available free of charge

Neurology India, Vol. 51, No. 2, 2003, pp. 193-196

 en Foramen magnum tumors: A series of 30 cases
P. Sarat Chandra, A. K. Jaiswal, V. S. Mehta


Background and Aims: Foramen magnum tumors, especially those located ventrally, are surgically challenging. We studied clinical and surgical details of extramedullary tumors located in the region of the foramen magnum.
Material and Methods: A series of 30 cases of extramedullary tumors at the foramen magnum, operated over a period of 8 years is presented.
Results: There were 10 neurofibromas, 8 meningiomas, 6 chordomas, 2 tuberculomas and 4 miscellaneous tumors. The clinical profile consisted of sensory symptoms in all the patients, quadriparesis in 24, lower cranial nerve affection in 8 and sphincter disturbances in 6 patients. The surgical approaches consisted of an extreme lateral approach in 10, a posterior or posterolateral approach in 18 and a per-oral route in 2 cases. Total excision of the tumor was performed in 24 and a subtotal excision of the tumor was done in 6 cases. Two patients died, one due to meningitis and the other due to chest infection. Eight other patients had complications like CSF leak, meningitis, pseudomeningocele, laryngeal edema, and transient worsening of neurological deficits.
Conclusions: Foramen magnum tumors have long been regarded as difficult lesions both in terms of diagnosis and management. However, with the availability of MR imaging, newer surgical techniques and skull basal exposures, the excision of these lesions is becoming easier and safer.

Foramen magnum, Craniovertebral junction, Tumors, Complications

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