What is the brain disease that causes Primary Progressive Aphasia?
There are different types of degenerative brain diseases, each one due to a different abnormality in the brain tissue itself. Each of the following types of degeneration (also called neuropathology) has a specific type of abnormality in the brain cells. These are detectable only under a microscope when a postmortem brain autopsy is performed. • Alzheimer s disease (AD) abnormalities in the cells are called neurofibrillary tangles and senile neuritic plaques • Pick s disease (PD) abnormalities in the cells are called argentophyllic inclusions or Pick bodies • Nonspecific degeneration (NSD) there is evidence of brain cell death, but no features of Alzheimer s or Pick s disease • Parkinson s disease abnormalities in cells are called Lewy bodies and these are in areas that control movement • Corticobasalganglionic degeneration the brain cells in a specific part of the brain (called the basal ganglia) show signs of degeneration and special characteristics under the microscope • Diffuse Lewy
