Case 4: Imaging Question 3

A brain MR examination was performed without and with contrast. Select images are depicted above.

Questions

1. What are the above sequences?

Answer

2. Where is the abnormality located?

Answer

3. Describe the abnormalities using appropriate terminology.

There are three masses located within the left frontal lobe. They are dark or "hypointense" on T1 (green arrows), bright or "hyperintense" on T2 (red arrows) and show peripheral contrast enhancement (blue arrows). There is surrounding edema that is bright on T2 and FLAIR images that predominantly involves the white matter, in a pattern consistent with vasogenic edema (orange arrows).

4. What is your imaging differential diagnosis for the imaging findings?

Answer