text: Positron emission tomography PET may show hypometabolism in areas of brain associated with memory in patients with history of<unk>  but with no visible structural or functional brain damage on CT scan or MRI.
option_0: Amnesia other imaging findings
option_1: Dementia other imaging findings
option_2: Encephalopathy other imaging findings
option_3: Brain tumor other imaging findings
option_4: Personality disorder other imaging findings
option_5: Brain Stem Gliomas other imaging findings
option_6: Intracerebral metastases other imaging findings
option_7: Creutzfeldt-Jakob disease other imaging findings