Presentation
Headache and fever for a few days.
Patient Data
Age: 55 years
Gender: Male
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A well-defined lesion is seen on the right side at quadrigeminal cistern just posterior to the tectum/midbrain with minimal mass effect, follow fat signal in all giving MRI sequences with blooming on Gradient sequence, in keeping with quadrigeminal lipoma, in addition to the bilateral mastoiditis.
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A fat density lesion is seen in the quadrigeminal cistern in keeping with lipoma.
Case Discussion
Considering patient symptom, a finding of the quadrigeminal cistern lipoma is incidental, the HU on CT -100 and on MRI it follows fat intensity in all sequences.
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