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Psoriatic Arthritis

Posted Jan 07 2011 12:00am

Let's start by the definition: Psoriatic arthritis is an inflammation that involves the joints (arthritis) in someone who is having psoriasis. In many cases, individuals develop psoriasis first and then have psoriatic arthritis but the reverse can also occur.
The onset is usually between the age of 25 to 40 years old. 

What is the cause of psoriatic arthritis ?
The exact cause is unknown but it is most probably due to abnormal immune response which results in attacking the body's joints. This results in inflammation and if left untreated, can cause damage to the joints.

What are the different forms of presentations that can occur in psoriatic arthritis ?
There are five main presentations for psoriatic arthritis:

1. Asymmetrical inflammatory oligoarthritis.
The joints of the upper and lower limbs can be affected. This will cause a painful, sausage-like swelling of the fingers and toes.
Notice the "sausage" middle finger.

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