 There is a large bilobed lesion centered in the right caudate head, that measures 31 x 12 mm (601/17). This mass has heterogenous signal on T2/FLAIR and has a complete peripheral T2 hypointense rim of hemosiderin. The mass has prominent popcorn like T1 intrinsic hyperintensity, with mild superimposed enhancement. There is prominent blooming on the susceptibility images, and several areas of blood-fluid levels. Small lobular component of the mass extends just beyond the midline with slight mass effect on the anterior third ventricle. The mass exerts minimal mass effect on the anterior horn of the right ventricle. The mass abuts the right A1 segment. There is no surrounding FLAIR hyperintensity to suggest recent hemorrhage.No evidence of diffusion abnormalities. There is normal ventricular size with no midline shift. Basal cisterns are patent.
Prominent right caudate head cavernous angioma with several tiny blood-fluid levels, but with no evidence of surrounding edema to suggest recent hemorrhage.