Pineal cyst, follow-up in 6 months. Evaluate for changes and growth, headaches. Again seen is a pineal cyst measuring 21 mm in the AP dimension, 16 mm in the transverse dimension, and 12 mm in the craniocaudal dimension. There is no significant change since prior. No significant change in smooth enhancement involving the posterior wall measuring approximately 4 mm in thickness. Stable susceptibility effect and low T2 signal involving the inferior aspect of the pineal cyst which may be related to chronic products and/or mineralization. There remains mild mass effect on the tectum. The ventricles are within normal limits in size and configuration.Stable punctate foci of susceptibility associated with the ventricles bilaterally most likely represent chronic hemosiderin related to prior ventriculostomy/fenestration of the pineal lesion. No edema in the brain parenchyma. Unchanged linear area of gliosis in the right frontal lobe along prior catheter tract. No restricted diffusion to suggest acute ischemia. No intracranial hemorrhage. No other intracranial mass or mass-effect. Stable low-lying cerebellar tonsils which remain rounded and without significant crowding at the foramen magnum. There is patchy opacification of the ethmoid air cells and minimal mucosal thickening elsewhere in the paranasal sinuses.
No significant change in pineal cyst compared to recent priors. Cyst is larger when compared to more remote prior study from 6/7/2012.