Hiya , i am trying to get a definitive answer , took me ages to get to a diagnosis of sero positive RA , now the consultant is saying I also have PsA .
All the literature i read states that the defining factor as to a diagnosis of PsA is that you are sero-negative .
I do have both sets of symptoms applicable to each version of Arthritis , Have a + ve RA factor , AND have recently developed Psoriasis on my legs, Lower Spine , and Buttocks ..and spreading fast .
Am on MTX and Leflu which i know are good for both types, and use Dovonex and Betnovate for the skin issue , i am just curious as how common it is to have both , as stated above , most sites including PAPAA suggest/ infer that you can't have both .:O
I never did do things by halves :O hehe
Any ideas or links to further reading that mentions having Both types of Arthritis

Cheers
Rich
Comments
Dear Rich
It is really best to speak to your rheumatologist about your concern over your diagnosis of both these conditions and about having both types of arthritis. If you click on the link to our factsheets http://www.arthritiscare.org.uk/PublicationsandResources/Listedbytype/Factsheets
you can download the one called Seronegative arthritis that has information about both psoriatic and rheumatoid arthritis and about diagnosis that may be helpful to you.
Best Wishes
Dawn
I have emailed his secretary for an answer so will have to wait i suppose .
My GP has also advised me the same as above that you cannot have PsA if you are Sero +ve for RF.
However i have found some info in various qualified sources on-line where Consultants have stated that it is rare that people are diagnosed as having PsA with a +ve RF( Note use of the word "rare")
This suggest that it is possible to have a diagnosis of PsA with a +ve RF.
I like to be armed with information to enable me to make an informed decision before i talk to my Consultant .. hence the question posted here, so i guess i will have to approach this "blind" ...but thanks anyway .
Cheers
Rich C:)
Thank you for your enquiry to Helplines. I am not aware of any of the information about the sero negative arthritis family which particularly singles out and emphasises stress. If you would like more replies from other people living with arthritis you might want to consider posting on the 'Living with arthritis' forum too.
I hope you get some helpful replies
Guy