DIFFERENTIAL DIAGNOSIS OF POSITIVE RHEUMATOID FACTOR

Differential diagnosis of positive Rheumatoid factor are : 
-SLE
-Rheumatoid arthritis
-polymyositis
-TB
-Infective endocarditis
-scleroderma
-sjogren's syndrome 
-leprosy
-viral hepatitis
-syphilis 
-typhoid
-lymphomas
-repeated blood transfusion 
-idiopathic pulmonary fibrosis 
-cirrhosis liver 
-chronic active hepatitis
-drug abusers
-pneumoconiosis 
-pancreatic infestations
​-infectious mononucleosis