By Crystal Phend
Source Medpagetoday
Each type of dementia has its own disease trajectory. For Alzheimer’s disease, the progression is predictable, although how long each phase lasts may differ from person to person.
The damage caused by Alzheimer’s disease begins long before any symptoms show up. Over the course of years or decades in this preclinical stage, the characteristic buildup of disease-causing amyloid plaques and neurofibrillary tangles is underway. This can be seen in research studies with imaging tests or fluid biomarkers, but rarely is identified in normal medical care settings.
Read more https://www.medpagetoday.com/medical-journeys/alzheimers-disease/112668