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What is Which of the following is true regarding Rheumatoid arthritis - and explain in detail?
"The typical picture of B/L symmetrical inflammatory polyarthritis involving small joints initially and large joints later on, with sparing of the axial skeleton except the cervical spine is very likely, rheumatoid arthritis".

RA causes pleural effusion with low glucose & pH.
Enthesopathy is not seen in RA.