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Neurosurgery. 1992 Aug;31(2):171-8.

Ganglioglioma: 13 years of experience.

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  • 1Division of Neurosurgery, University of Iowa Hospitals and Clinics, Iowa City.


A 13-year retrospective review of 17 patients with gangliogliomas treated at the University of Iowa was conducted to investigate the association between tumor location, extent of resection, pathological findings, and patient prognosis. Thirteen were in the cerebral hemispheres and 4 in the midline. The mean ages at diagnosis and symptom onset were 16 and 8.8 years, respectively. The most common presenting symptom was seizures (11 patients); focal neurological deficit was seen in 5 patients and headache in 1. Patients with hemispheric tumors had an older age at time of diagnosis and a longer duration of symptoms. Pathologically, they had more microcalcifications, lymphocytic infiltration, microcystic degeneration, and eosinophilic bodies. Cerebral hemispheric tumors were more amenable to total resection than midline neoplasms, 77% versus 25%, respectively. In the patients with hemispheric tumors, 10 patients were tumor-free after total resection. Two of the 3 patients with partial resection had stable residual tumors. The third died of tumor progression. In the 4 patients with midline neoplasms, one was tumor-free after total resection. The other 3 had subtotal resection and radiation therapy. Two died within 2 years; the third is still alive with progressive tumor. Five of 9 patients who had seizure disorders and who underwent total tumor removal were seizure-free postoperatively. The other 4 patients and the 2 with partial surgical resection continued to have seizures.

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