Rheumatoid Arthritis Patients on Adalimumab to Evaluate Its Effect on Synovitis Using Ultrasonography in an Egyptian Population

A patient will be enrolled in this study if he/she fulfills ALL of the following criteria: * Male or Female patients ≥ 18 years of age with diagnosis of RA * Patient is eligible to start adalimumab therapy according to the local product label and prescription guidelines * Patient is naïve to all biologics e.g. anti-cluster of differentiation 4 (anti-CD4) and anti-TNF treatments at the start of the study * Patient has no history of inflammatory arthritis other than rheumatoid arthritis * Patient has no history of lymphoma or leukemia or other malignancies * Has negative result of tuberculosis (TB) screening test or is receiving TB prophylaxis as per local guidelines, Provided written Authorization to the investigator to use and/or disclose personal and/or health data, or Informed Consent if requested by the Local Regulations

* Patients that are not diagnosed with rheumatoid arthritis as judged by the American College of Rheumatology criteria * Patient is currently diagnosed with any condition other than rheumatoid arthritis that may affect radiography progression * Susceptibility to infections including TB, as judged by the investigator * Patient is carrier of Hepatitis B virus * Patient is a pregnant or lactating female at the time of screening