Case #4

CT

• Mixed attenuation mass with internal calcification centered in the posterior right temporal lobe
• Associated mass effect on the right lateral ventricle without midline shift or hydrocephalus
• Scalloping of the adjacent inner table of the calvarium

MRI

• Mixed cystic/solid mass centered in the posterior right temporal lobe measuring 4.5 x 4 x 3.7 cm
• The solid component avidly enhances and the cystic components demonstrate peripheral enhancement
• The more superior of the two dominant cystic components demonstrates relative T1 signal hyperintensity internally
• Areas of susceptibility artifact corresponding with areas of calcification on the CT
• The mass broadly contacts the overlying dura and the ependymal margin of the atrium of the right lateral ventricle, appearing to contact the choroid plexus
• Mild surrounding vasogenic edema