Rheum Flashcards
What is Juvenile Idiopathic Arthritis?
A condition that presents with autoimmune inflammation within joints
What criteria are needed for a diagnosis of JIA?
Arthritis >6/52 without another cause in a patient under 16y
What are the different subtypes of JIA?
Systemic JIA
Polyarticular JIA
Oligoarticular JIA
Juvenile Psoriatic Arthritis
What is Systemic JIA also known as?
Stills disease
What are symptoms of Stills disease (Systemic JIA)?
Salmon Pink rash Enlarged lymph nodes Weight loss High swinging fevers Joint inflammation and pain Splenomegaly Muscle pain Pleuritis Pericarditis
What may bloods demonstrate in Stills disease?
ANA -ve
Rh Factor -ve
Raised Inflammatory markers
What are some complications of Stills disease?
Macrophage Activation Syndrome - Severe immune system activation with an inflammatory response
What is Polyarticular JIA?
Disease involves >5 joints
Often symmetrical, equivalent of RA in adults
How does Oligoarticular JIA present?
Disease involves <4 joints, usually presents as a monoarthritis
Which condition is strongly linked to Oligoarticular JIA?
Anterior Uveitis
What is Juvenile Psoriatic Arthritis associated with?
Psoriasis
How can JIAs be managed?
NSAIDs - Ibuprofen
Steroids - PO, IM or intra-articular
DMARDs - Methotrexate, Sulfasalazine
Biologic Therapy - TNF alpha inhibitors - Infliximab
What is Henoch-Schoenlein Purpura?
IgA vasculitis that presents with a purpuric rash of the lower limbs and buttocks.
What are some classical features of Henoch-Schoenlein Purpura?
Purpura
Joint Pain
Abdominal Pain
Renal Involvement
What are some potential differentials for suspected HSP?
Meningococcal Septicaemia
Leukaemia
Idiopathic Thrombocytopenic Purpura
Haemolytic Uraemic syndrome