13-year-old male with history of Rathke's cyst and pituitary cyst. Evaluate cystic structures. MRI Brain:There is no evidence of intracranial hemorrhage, mass, or acute infarct. The brain parenchyma appears unremarkable. There is no evidence of abnormal enhancement. The ventricles and basal cisterns are normal in size and configuration. There is no midline shift or herniation. The major cerebral flow voids are intact. Minimal diffuse paranasal sinus mucosal thickening. Mildly enlarged bilateral cervical lymph nodes are likely reactive in etiology. The AP dimension of the globes remain elongated but are unchanged.MRI Pituitary:Interval significant decrease in the size of the non-enhancing focal lesion between the anterior and posterior pituitary gland which now appears as a thin slitlike area of nonenhancement. The pituitary gland is otherwise within normal limits. Suprasellar cistern, optic chiasm, cavernous sinuses and intracranial portions of the optic nerves appear unremarkable.
Interval significant decrease in the size of a likely Rathke's cleft cyst located between the anterior and posterior pituitary gland. 