Quadrigeminal cistern lipoma

Case contributed by Ammar Haouimi
Diagnosis almost certain


Primary amenorrhea.

Patient Data

Age: 25 years
Gender: Female

The MR sequences demonstrate a small well-defined lesion in the left para-median region of the quadrigeminal cistern. It shows high intensity on both T1 and T2 with loss of signal on axial T1 fat saturation.

The pituitary gland is normal in size with no focal lesion seen.

Case Discussion

MRI features characteristic of a quadrigeminal cistern lipoma.

The differential diagnosis should include:

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