Posterior cortical atrophy
Posterior cortical atrophy (PCA), also known as Benson's syndrome, is a rare degenerative condition in which damage occurs at the back (posterior region) of the brain. In the vast majority of people, the cause of PCA is Alzheimer's disease.
- Rarer types of dementia
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- HIV-associated neurocognitive disorder (HAND)
- Corticobasal syndrome (CBS)
- Huntington's disease
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- Niemann-Pick disease type C
- Normal pressure hydrocephalus (NPH)
- Parkinson's disease
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Rarer causes of dementia
The first symptoms of PCA tend to occur when people are in their mid-50s or early 60s.
However, the first signs are often subtle and so it may be some time before a formal diagnosis is made.
Initially, people with PCA tend to have a relatively well-preserved memory but experience problems with their vision, such as difficulty recognising faces and objects in pictures. They may also have problems with literacy and numeracy.
These tasks are controlled by the back part of the brain, where the initial damage in PCA occurs.
As damage in the brain spreads and the disease progresses, people develop the more typical symptoms of Alzheimer's disease, such as memory loss and confusion.
There are no specific medications for the treatment of PCA but some people find medications for Alzheimer's disease helpful.
Posterior Cortical Atrophy Support Group
Further information and support to people with posterior cortical atrophy (PCA), their families, friends and healthcare professionals.