MR diagnosis of central neurocytoma

Objective To evaluate the characteristic appearance and diagnosis value of central neurocytoma on MRI.Methods MR imaging of 17 patients with central neurocytoma(CNC) confirmed surgically and pathologically were retrospectively reviewed.Results All the lesions located in the lateral ventricle septum pellucidum,adjacent to Monro hole,present as hypointense and equal signal intensity on T1WI and inhomogeneous hyperintense signal on T2WI.Wire mesh or strips of abnormal signal intensity within the corpus callosum and the top of lateral ventricle on sagittal and coronal scan were detected in 9 patients,while cord-like abnormal signal intensity one side or both sides of the lateral ventricle wall were found in 7 patients.All the tumors were associated with multiple cystic degeneration and bleeding and flow void signal intensity were demonstrated in some.Most of the tumors had significant inhomogeneous enhancement on Gd-DTPA enhanced T1WI.Conclusion Central neurocytoma has the characteristic appearances on MRI,being helpful to the diagnosis of it.