71 years, Female, worsening dementia and thalamic mass. Examination is limited to 3-D T2 sequence for operative planning. Again demonstrated is expansile T2 signal abnormality centered within the medial aspects of the bilateral thalami extending into the midbrain as well as laterally into the lateral aspect of the thalamus on the right. Additional signal abnormality involving the splenium of the corpus callosum on the right is also noted. Subtle T2 hyperintensity along the right paramedian frontal lobe along the cingulate gyrus is also noted. Chronic appearing T2 signal abnormality involving the left medial temporal lobe has remained unchanged across multiple prior studies. No midline shift or herniation. No hydrocephalus.
Note examination is limited to 3-D T2 sequence for operative planning. Infiltrative mass centered on the thalami is incompletely evaluated but remains highly suspicious for neoplasm such as glioma or lymphoma. Patient will return for repeat study with sedation including postcontrast sequences for further evaluation. 