1、Fig.1 Axial T2-weighted image demonstrated a mass with hyperintensity cystic portion compared to the CSF and a high signal intensity mural nodule compared to the gray matter.There was no obvious parenchymal edema.This was the type of mass with cyst and mural nodule.Fig.2 Contrast-enhanced T1-weighte
2、d image showed a cystic solid mass in the seller region.The inferior portion was predominately solid and the superior portion was multi-cyst.The mass was honeycomb-shape enhanced.This was the type of mass with multi-cyst and mural nodule.Fig.3 A:Axial T2-weighted image revealed a rounded heperintens
3、e mass with a well-defined margin.There was slightly peripheral edema.B:The mass was homogeneous hypointensity on T1-weighted image,with a well-defineded margin.C:The mass was homogeneous hyperintensity on FLAIR image.There was slightly peripheral edema.D:The mass was heterogeneous enhanced after ad
4、ministration of contrast medium.This was the type of predominantly solid mass with minimal to no cyst like component.Fig.4 Gd-DTPA enhanced T1WI showed a cyst-like mass in the midline of the cerebellum.The cyst wall was heterogeneously enhanced with no mural nodule.This was the type of predominantly cystic mass.
