MR Diagnosis and Differential Diagnosis of Central Neurocytoma

Objective:To explore the MR diagnosis and differential diagnosis of central ncurocytoma.Methods:8 patients with pathologically proved central neurocytoma were retrospectively reviewed,and the MRI appearances were observed.Results:Among the 8 cases,7 cases lesions located adjacent to the lateral ventricle near Monro's foramen,one lesion located at the third ventricle.All 8 cases lesions appeared as mixed cystic-solid pattern.On T1WI,the solid portion showed iso-or hypo-intensity and the cystic part showed hypointensity.On T2WI,the solid portion showed iso-or hyper-intensity and the cystic part showed hyperintensity.The cystic portion appeared ashoney-comb-like areas located at the periphery or inside the tumor.After administration of Gd-DTPA intravenously,the solid portion showed marked or medium enhancemen.Conclusion:Central neurocytoma in the lateral ventricle enjoys typical location;considering the age of patients,non-contrast and contrast MR findings,correct diagnosis of central neurocytoma can be made.