Abstract: Objective To summarize and analyse the clinical characters and keyhole surgery results of cingulate gyrus gliomas.Methods The clinical manifestations, radiological findings and pathological characters of 31 cases of cingulate gyrus admitted from January 2001 to December 2003 were studied retrospectively. All cases were operated by keyhole trans-longitudinal fissure approach. The surgical results was analyzed.Results Seizure occurred as an initial symptom in all of the 31 case. The tumors grew exactly within the cingulate gyrus; And all cases were demonstrated as low-grade gliomas by pathological examination (WHO Ⅱ). Among them, 25 cases were removed totally and 6 were subtotally. Seizure free were achieved in all cases. 3 cases presented transient contralateral limb paralysis. There was no mortality and recurrence during follow-up of mean 26 months.Conclusion Seizures as the initial manifestation, growing locally within the cingulate gyrus and low-grade glioma pathologically are the main clinical characters of cingulate gyrus gliomas. The keyhole trans-longitudinal fissure approach is a minimally invasive and practical way in the treatment of cingulate gyrus gliomas.

Key words: cingulate gyrus, gliomas, keyhole surgery