Objective To investigate the imaging appearances of the central neurocytoma. Methods 17 cases which proved by pathology were retrospectively analyzed with imaging appearance. Results 12 lesions located in the lateral ventricle, 2 in midbrain,1 in frontal lobe, 1 in parietal lobe and 1 in pineal body.12 lesions located in the lateral ventricle all adjacent to Monro hole and septum pellucidum,The lesions presented as iso-density or slightly high density on CT with necrotic area and calcifications;with irrugular shape, present as hypo-intense and equal signal intensity on T1WI and inhomoge-neous hyperintense signal on T2WI,all lesions were associated with multiple cystic degen-eration in tumors, as well as there were multiple strip-like structures in the periphery, which adhered to the ventricle walls and callus in 8 patients.On post-contrast MR scan, the solid part of 8 lesions demonstrated moderate or obvious enhancement, the thick enhanced vessels were found in 7 patients;lateral ventricle widened in 12 cases, only 3 cases with interstitial edema. 5 cases out of lateral ventricle in MRI scans showed mix signal,without above characteristic appearances. Conclusion The imaging of CNC in the lateral ventricle has some characteristics, aggregate analysis CT,MRI and associated with patients history should be first considered CNC, CNC outside the lateral ventricle lack of specificity, and the final diagnosis still depends on pathology.