Palindromic rheumatism

Palindromic rheumatism is a form of inflammatory arthritis in which the immune system briefly turns on the lining of a joint, producing a short-lived flare that then resolves completely. Why this on-off process happens is not fully understood, and in most people no single underlying cause is found. It is best thought of as a tendency to recurrent, self-limiting joint inflammation rather than a condition with one clear explanation.

It can affect adults of any age, and unlike rheumatoid arthritis it tends to affect men and women fairly evenly. The strongest recognised association is with rheumatoid arthritis, and a positive rheumatoid factor or anti-CCP antibody result points to a higher chance of that link.

Palindromic rheumatism has a distinctive on-off pattern. Features may include:

• Sudden attacks of pain, swelling and stiffness, often in one or a few joints
• Attacks that last from a few hours to a few days, then settle fully
• Periods of feeling completely well between attacks
• Sometimes swelling of the soft tissues around a joint

Palindromic rheumatism affects the joints and the soft tissues around them, and it does not usually cause a rash. If a rash comes with your attacks, that can be a useful clue pointing towards a different or additional diagnosis, such as lupus or psoriatic arthritis, and is worth mentioning to your specialist.

Attacks often arrive without warning, and for many people there is no clear trigger. Some notice that an attack tends to follow physical exertion, a period of stress, or a minor infection, and occasionally a particular food is suspected, but these patterns are individual and not consistent from person to person. Keeping a short diary of when attacks happen, which joints are affected and how long they last can help you and your specialist spot any pattern and build an accurate picture of the condition over time.

Because the joints can look and feel normal between attacks, diagnosis relies heavily on the history of the pattern, supported by an examination and blood tests, including antibodies that can indicate a higher chance of progressing to rheumatoid arthritis. Capturing the picture accurately helps guide treatment and monitoring.

There is no single test that confirms the diagnosis; it is recognised from this characteristic pattern of recurrent, fully self-limiting attacks, once other causes have been excluded. Blood tests for rheumatoid factor and anti-CCP antibodies are checked routinely, as a positive result raises the likelihood of later progression to rheumatoid arthritis and influences how closely you are monitored.

If an attack can be assessed while it is active, ultrasound can confirm the inflammation. Dr Borukhson uses point-of-care ultrasound during the consultation. You can read more on the ultrasound clinic page.

Treatment aims to settle attacks and reduce how often they happen, and in some people to lower the chance of progression to a persistent arthritis. The approach is individual and kept under review, as the right plan depends on the frequency of attacks and the results of any tests. It is always discussed with you.

An individual attack is often eased with an anti-inflammatory medicine (an NSAID). Where attacks are frequent, a disease-modifying medicine is commonly added to reduce how often they occur: hydroxychloroquine is the usual first choice, and there is some evidence it may also lower the chance of progressing to rheumatoid arthritis, particularly when antibody tests are positive. Other DMARDs, such as sulfasalazine, are sometimes used instead or alongside it.

Between attacks most people feel completely well and can live entirely normally, so the aim is to stay active and well rather than to restrict yourself. Keeping generally active, maintaining a healthy weight and not smoking all support joint health, and stopping smoking in particular is worthwhile because it is linked to a higher risk of rheumatoid arthritis.

It also helps to work in partnership with your specialist, sharing how the pattern is changing over time so the plan can be adjusted if needed. The outlook is reassuring: many people continue with the on-off pattern for years, in some the attacks fade, and where there is any drift towards persistent arthritis, regular review means it is picked up and treated early.

Palindromic rheumatism itself is not dangerous, but a few changes are worth a routine review with your specialist, as they can signal a different or evolving diagnosis: attacks that are becoming more frequent, longer or more severe, a joint that stays swollen or stiff rather than settling fully, or a new rash, dry eyes or mouth, or feeling generally unwell with attacks.

Seek urgent same-day medical advice if a single joint becomes hot, very swollen and intensely painful, especially with a fever, as a septic joint must be excluded quickly. The same applies to sudden severe pain, spreading redness from a joint, or feeling acutely unwell, none of which fit the usual self-limiting pattern.

Because palindromic rheumatism can sometimes be an early stage on the way to rheumatoid arthritis, assessment, monitoring and timely treatment can make a real difference. If you have recurring attacks of joint pain and swelling that come and go, a specialist review is worthwhile.

How is palindromic rheumatism diagnosed if my joints look normal between attacks?

Because the joints often look and feel normal once an attack settles, the diagnosis rests mainly on the pattern of recurrent, fully self-limiting attacks, supported by examination and blood tests once other causes are excluded. Keeping a short diary of which joints are affected and how long attacks last is genuinely helpful. If you can be seen during an active attack, Dr Borukhson can use point-of-care ultrasound in the same visit to confirm the inflammation.

Will palindromic rheumatism turn into rheumatoid arthritis?

Not everyone progresses, and many people continue with the on-off pattern alone. In some, though, it can be an early stage on the way to rheumatoid arthritis. Blood tests for rheumatoid factor and anti-CCP antibodies help here, as a positive result raises that likelihood and means closer monitoring. This is one of the main reasons assessment is worthwhile, so any change can be picked up and treated early.

How are the attacks treated, and can they be prevented?

An individual attack is often eased with an anti-inflammatory medicine. Where attacks are frequent, a disease-modifying medicine is commonly added to reduce how often they happen. Hydroxychloroquine is the usual first choice, with some evidence it may also lower the chance of progressing to rheumatoid arthritis, particularly when antibody tests are positive. The right plan depends on how often attacks occur and your test results, and it is always discussed with you and kept under review.

What should I do during an attack, and when should I seek help?

During an attack, simple measures such as resting the joint and taking an anti-inflammatory if it suits you usually help while it settles over hours to a few days. Noting which joints are involved and how long it lasts builds a useful picture over time. It is sensible to arrange a review if attacks are becoming more frequent or severe, if a joint stays swollen rather than settling fully, or if you develop a rash or feel generally unwell with an attack, as these can point to a different diagnosis.

Do I need to see a rheumatologist for this?

A specialist review is worthwhile if you have recurring attacks of joint pain and swelling that come and go. Palindromic rheumatism can be hard to pin down because the joints look normal in between, and it overlaps with other conditions. A rheumatologist can confirm the pattern, arrange the relevant antibody tests, and set up appropriate monitoring, so that if there is any sign of progression it can be treated promptly rather than missed.