Case 5: Imaging question 3

CASE 5: Explanation of Imaging Findings

MRI without and with contrast

CASE 5

A brain MRI without and with contrast was performed. Select images are shown.

Questions

1. What are the above sequences?

2. Where is the abnormality located?

3. Describe the abnormality using appropriate terminology.

The mass has both solid and cystic components. The solid portion of the mass enhances after contrast (red arrow). The cystic portion of the mass is hyperintense on T2 (orange arrows). There is no diffusion restriction within the mass.

4. Why are the lateral ventricles enlarged?

5. What is the differential diagnosis for this abnormality?

6. Is this an example of communicating or non-communicating hydrocephalus?

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