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Pineal gland cyst

Case contributed by Dr Hani Salam

Patient Data:

Age: 30 years
Gender: Male
Race: Middle eastern

CT brain

Modality: CT

A well-defined cystic lesion in the pineal body containing scattered calcified foci.

MRI brain

Modality: MRI

The lesion is of low-signal intensity on T1 and high signal intensity on T2 as well as intermediate signal intensity on FLAIR. No restricted diffusion is demonstrated. Mild linear enhancement is demonstrated after gadolinium injection. No nodular enhancement or soft tissue elements.

Case Discussion:

This case illustrates the appearances of a large pineal cyst with fluid which does not fully attenuate on FLAIR. This sort of lesion needs followup as a cystic pineal tumour can appear similar. 

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