Multiloculated pineal cyst
The patient originally underwent an MRI for headaches. A pineal cyst was detected, that was followed for several years.
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T2-weighted MRI showed a thin-walled, multiloculated cyst in the pineal region, that did not grow during a period of three years.
Pineal cysts are common and when typical in appearance and small require no followup. Larger cysts or those with atypical features (such as this one) need to be followed to ensure they do not represent cystic pineal neoplasms (e.g. pineocytoma).