Abstract：Objective: To investigate MRI characteristics and pathology of intracranial neuron and mixed neuronal-glial tumor. Methods: Clinical data, histopathology and MRI findings in 26 patients with intracranial neuron and mixed neuronal-glial tumor proved by pathology were analysed retrospectively. Results: Eleven dysembryoplasia neuroepithelial tumor(DNT), mainly seen in the supratentorial brain and beneath cerebral cortex, some were seen as cystic masses, appearing as low signal intensity on T1WI and high signal intensity on T2WI. DNT had a well-demarcated and no or only slight edema, no enhancement or slight inhomogeous enhancement; 11 gangliogliomas mainly seen in the supratentorial brain appearing as low signal intensity on T1WI and high signal intensity on T2WI. Two showed mixed signal intensity, margin of lesion was well-demarcated and no edema or slight edema, no enhancement or slight uneven enhancement, 3 central neurocytomas, which were located in the lateral cerebral ventricle, all showed mixed signal intensity on T1WI and T2WI, with cystic components. Enhancement was inhomogeneous; 1 desmoplastic gangliogliomas seen as cystic masses, located in fronto-temporal-apical lobe, had septation, appearing as low signal intensity on T1WI and high signal intensity on T2WI. Conclusion: Intracranial neuronal and mixed neuronal-glial tumours had no characteristic imaging features. It should be closely referred with clinical manifestations.
2010, Vol. 21 
