My 80 yo mother has been having memory issues and tremors. I took her to a neurologist for a full work up. EEG normal. MRI normal with two notes pasted below (TIA damage from years ago and volume question). A litany of blood work also came back all normal. Is a PET scan really necessary or might we be better off experimenting with diet (increase omegas, etc) and possibly look at RX interactions since all the aforementioned tests have been normal? The neurologist suggested it was maybe early dementia or Alz but that was before everything came back normal. I am just confused about whether or not to do PET. ** The hippocampal volumes are within the normal range when compared to age-matched controls for this patient. The total hippocampal volume measures 5.75 mL which is at the 62nd percentile when compared to age-matched controls. **There is mild to moderate chronic small vessel ischemia and mild generalized volume loss. Thanks!