Rathke cleft cyst

Case contributed by Carlota García de Andoin
Diagnosis certain

Presentation

Pituitary cystic lesion incidentally found in a previous brain MRI.

Patient Data

Age: 45 years
Gender: Male
mri
This study is a stack
Sagittal
T1
This study is a stack
Coronal
T1
This study is a stack
Sagittal
T1 C+
This study is a stack
Coronal
T1 C+
This study is a stack
Coronal
T2
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Info

Cystic lesion located in the midline of the adenohypophysis that appears hyperintense in T2 sequence and isointense in T1 enhanced sequences.

It measures 10 x 8 x 8 mm, has a thin wall that enhances with contrast and a 5mm bilobulated T2 hypointense non-enhancing intralesional nodule, which is pathognomonic for Rathke cleft cyst.

It does not affect to the optic chiasm. 

Case Discussion

A cystic hypophyseal lesion with a characteristic small non-enhancing intracystic nodule. Findings are consistent with Rathke cleft cyst.

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