Juvenile Idiopathic Arthritis Flashcards
Aetiology of JIA?
Autoimmune
- Unknown but strong genetic link
Age range?
<16 years
General symptoms?
Fatigue Malaise Arthritis Disability - Blindness - Refusal to walk Pleural issues
TENOSYNOVITIS
DDx?
Acute septic arthritis (MUST BE RULED OUT)
Osteomyelitis
Gender difference?
Mostly > girls
What are the 2 broad subtypes?
Pauciarticular < or equal to 4 joints affected
>4 joints affected
What is found in type 1 pauciarticular?
ANA +ve in most cases
What age range is type 1 pauciarticular?
1-3 years
What joints are typically affected in type 1?
Any but RARELY HIP
What telltale symptom may be present in type 1?
Chronic uveitis
What can chronic uveitis lead to?
Blindness
What is the name given to type 2 pauciarticular JIA?
Enthesitis related
What gene may be affected in type 2 pauciarticular JIA?
HLA-B27
Who is most likely affected in type 2 pauciarticular JIA?
Boys
7-8 yrs
Why is it called enthesitis related?
Can cause enthesitis of the achilles tendon