Case #2

CT

• Hyperattenuating lesion in the anterior right frontal lobe with a mixed attenuation mass with corresponding calcification along its lateral margin
• Surrounding vasogenic edema

MRI

• Irregular lesion in the anterior right frontal lobe with heterogeneous internal T2 signal intensity and a T2 hypointense rim, areas of intrinsic T1 signal hyperintensity, and extensive corresponding susceptibility artifact
• Corresponding areas of enhancement
• Adjacent circumscribed lesion measuring 4.5 x 3.5 x 3.3 cm with internal T2 signal hypointensity and a rim of susceptibility artifact, most consistent with a parenchymal hematoma
• Surrounding vasogenic edema and local mass effect resulting in slight right-to-left midline shift without evidence of downward herniation or hydrocephalus