21 year-old female with a history of gastric cancer, evaluate for brain metastases prior to starting a clinical trial. Susceptibility artifact from dental hardware/retainer slightly limits evaluation. There is no evidence of intracranial metastatic disease. There is no abnormal parenchymal or meningeal enhancement. No intracranial mass or mass effect. No evidence of infarct or hemorrhage. Brain parenchyma is unremarkable. There is no midline shift or herniation. The major cerebral flow voids are intact. The ventricles and basal cisterns are normal in size and configuration. There is a 6 x 3 mm nonenhancing structure within the posterior aspect of the pituitary gland which is not well evaluated but likely represents an incidental Rathke's cleft cyst. The orbits, skull, paranasal sinuses, and scalp soft tissues are grossly unremarkable.
1. No evidence of intracranial metastatic disease.2. Subcentimeter nonenhancing structure within the posterior aspect of the pituitary gland is not well evaluated but likely represents an incidental Rathke's cleft cyst. No associated mass effect.