When persistent joint pain strikes, the search for answers often leads to a crucial diagnostic tool: the rheumatoid factor test. This relatively quick blood analysis serves as a window into the immune ...

Learn about the clinical implications of rheumatoid factor positivity in psoriatic arthritis and its effect on biologic therapy discontinuation.

September 7, 2012 — Elevated rheumatoid factor (RF) levels in healthy patients may be a strong predictor of future rheumatoid arthritis (RA), according to data from a prospective cohort study ...

Associations of autoimmune diseases with appendiceal cancer in a population-based study. This is an ASCO Meeting Abstract from the 2026 ASCO Annual Meeting I. This abstract does not include a full ...