Visceral pain is often described as generalized aching or squeezing. It is caused by compression in and around the organs, or by stretching of the abdominal cavity. Sometimes visceral pain may radiate to other areas in the body, making it even harder to pinpoint its exact location.
Data from the largest analysis to date of amyloid plaques showed they can appear 20 or 30 years before dementia symptoms.
In the second study, brain imaging was used to look for amyloid plaques in 50 people ages 20 to 56: 11 with dementia, 19 mutation carriers without symptoms and 20 normal family members.