Idiopathic arthritis Flashcards
What is juvenile idiopathic arthritis (JIA)?
JIA describes arthritis occurring in someone who is less than 16 years old that lasts for more than 6 weeks.
What are the types of juvenile idiopathic arthritis?
JIA is divided into three types: systemic onset, polyarticular, and pauciarticular.
What is systemic onset juvenile idiopathic arthritis?
Systemic onset is also referred to as Still’s disease.
What characterizes polyarticular juvenile idiopathic arthritis?
Polyarticular JIA involves more than 4 joints.
What characterizes pauciarticular juvenile idiopathic arthritis?
Pauciarticular JIA involves 4 or less joints.
What is juvenile idiopathic arthritis (JIA)?
JIA describes arthritis occurring in someone who is less than 16 years old that lasts for more than 6 weeks.
What does pauciarticular JIA refer to?
Pauciarticular JIA refers to cases where 4 or less joints are affected.
It accounts for around 60% of cases of JIA.
What are common features of pauciarticular JIA?
Common features include joint pain and swelling, usually in medium sized joints like knees, ankles, and elbows.
What is a potential symptom of pauciarticular JIA?
A limp may be present.
What is the significance of ANA in JIA?
ANA may be positive in JIA and is associated with anterior uveitis.
What is juvenile idiopathic arthritis (JIA)?
JIA describes arthritis occurring in someone who is less than 16 years old that lasts for more than 6 weeks.
What is systemic onset JIA also known as?
Systemic onset JIA is also known as Still’s disease.
What are the features of systemic onset JIA?
Features include pyrexia, salmon-pink rash, lymphadenopathy, arthritis, uveitis, anorexia, and weight loss.
What investigations may be conducted for systemic onset JIA?
ANA may be positive, especially in oligoarticular JIA; rheumatoid factor is usually negative.
