Principal polycythemia (PCV) may coexist in otherwise asymptomatic patients particularly in the presence of unsuspecting conditions such as Thrombotic thrombocytopenic purpura (TTP). of systemic lupus erythematosus (SLE), Sj?gren’s, and mixed connective tissue disease 2, 3, 4, 5. TTP in association with rheumatoid arthritis (RA) is extremely rare as there has only been one reported case… Continue reading Principal polycythemia (PCV) may coexist in otherwise asymptomatic patients particularly in