SCHEDULED DOWNTIME: We will be performing a database migration that will result in the site being unavailable for approximately 1 hour starting at UTC: Monday, 20 May 2024 11:00 PM (check your local time here

Pineal cyst

Case contributed by Utkarsh Kabra
Diagnosis almost certain


Decreased libido, MRI done for pituitary gland

Patient Data

Age: 30 years
Gender: Male

Cystic lesion, measuring approx. 12 x 11 x 11mm is seen in the pineal region. It appears hyperintense on T2, FLAIR images, and slightly hyperintense on T1W images. The lesion shows thin internal septations with no obvious solid component in the present non contrast scan. The lesion is mildly compressing superior aspects of the tectal plate, elevating, mildly splaying bilateral internal cerebral veins, and abutting splenium of the corpus callosum. No obvious hydrocephalus is seen in the present scan. 

Pituitary gland measures 10 x 11 x 6mm (AP x TD x HT). Normal size and signal intensity of anterior and posterior pituitary is seen with no obvious sella / suprasellar mass in present non contrast scan.


Case Discussion

Findings are suggestive of pineal cyst. Pineal cysts may cause hypopituitarism which can possibly explain patient's symptoms. It is important to note that there is no hydrocephalus in present scan and patient did not have any symptoms of Parinaud syndrome.

How to use cases

You can use Radiopaedia cases in a variety of ways to help you learn and teach.

Creating your own cases is easy.

Updating… Please wait.

 Unable to process the form. Check for errors and try again.

 Thank you for updating your details.