MRI Diagnosis of Cystic Pilocytic Astrocytoma / 实用放射学杂志

ABSTRACT

Objective To investigate the diagnostic value of cystic pilocytic astrocytoma by MRI.Methods MRI features of cysticpilocytic astrocytoma proved pathologically in 26 patients were reviewed retrospectively.The location,morphology and signal characteristics of the tumors were analyzed.Results Among 26 cases the tumors localized in cerebellum(n=20) and cerebrum(n=6).This tumor could be divided into simple cystic and cystic type with node on the wall.Conclusion Cystic pilocytic astrocytoma usually occur in children andadolescents with typical MRI features.MRI features in combination with clinical manifestation,it is possible to diagnose cystic pilocyticastrocytoma correctly before operation.