Findings:
Cystic lesion located in the midline between the adeno- and neurohypophysis, which appears hypointense in T2 sequence and hyperintense in T1 sequence. The lesion measures approximately 4 x 5 mm on the sagittal images.
The remainder of the imaged brain (please note this study has been targeted to the pituitary, and as such the whole brain has not been imaged) appears unremarkable.
Visualised paranasal sinuses and mastoid air cells are clear.
Conclusion:
Features consistent with Rathke cleft cyst.