9 year old boy with history of idiopathic epilepsy localizing to the left centro-temporal region on EEG. In the pineal gland (601/14) there is a 9 x 7 mm T2 hyperintense lesion with internal septation. The lesion has low T1 signal and does not suppress on FLAIR imaging. There is no significant susceptibility artifact to suggest calcification. There is no associated hydrocephalus and the ventricles are within normal limits in size and configuration. No restricted diffusion to suggest acute ischemia. No intracranial hemorrhage. No additional intracranial mass or mass-effect. The brain parenchyma is otherwise unremarkable for age. Specifically, the medial temporal lobes appear normal. The major flow-voids are preserved. Sella and orbits are grossly within normal limits. Paranasal sinuses and mastoid cells are clear. Bone marrow signal and extracranial soft tissues are within normal limits.
1. Subcentimeter pineal lesion, most likely benign. No associated mass effect, edema, or hydrocephalus. 2. Otherwise normal examination without findings to explain patient's seizures.