The Variable Appearance of Third Ventricular Colloid Cysts: Correlation with Histopathology and the Risk of Obstructive Ventriculomegaly.
Shekhar KhanparaArthur DayMeenakshi B BhattacharjeeRoy F RiascosJ P FerneliusK D WestmarkPublished in: AJNR. American journal of neuroradiology (2020)
Hyperintensity on T2-FLAIR, whether homogeneous, rim, or "dot sign," is associated with larger cyst size and younger patient age, and is an imaging risk factor for obstructive ventriculomegaly. The hyperintense rim does not represent a thickened cyst wall.