Rheumatology Flashcards
Describe the term Seropositive Inflammatory Arthritis.
Umbrella term for joint inflammation caused by autoantibodies e.g. RA (anti-CCP and RF), SLE (ANA, dsDNA, Anti-Sm, Anti-Ro, Anti-SRP), Scleroderma (anti-Scl70 + anti-centromere), Sjogren’s (Anti-La + Anti-Ro) and Dermatomyositis (anti-Jo)
Positive Anti-CCP is seen in what condition?
RA
Positive dsDNA is seen in what condition?
SLE
Positive Anti-SM is seen in what condition?
SLE
Positive anti-Ro is seen in what condition?
SLE; Sjogren’s
Positive anti-La is seen in what condition?
Sjogrens
Anti-centromere Abs being positive is suggestive of what condition?
Systemic sclerosis (limited)
Anti-Scl70 Ab being positive is indicative of what condition?
Systemic sclerosis (diffuse)
What does anti-Jo1 Ab suggest?
Myositis
What does positive Anti-cardiolupin Ab suggest?
Anti-Phospholipid Syndrome
What does positive Lupus anticoagulant suggest?
Anti-phospholipid syndrome
What does positive Lupus anticoagulant suggest?
Anti-phospholipid syndrome
What is the difference between cANCA and pANCA?
Two types of ANCA, each target a different protein within the cytoplasm of neutrophils and monocytes.
pANCA targets MPO
cANCA targets PR3
What group of conditions are present if ANCA Abs are present?
Small vessel vasculitis (GPA; EGPA; MPA)
State 3 RFs for SLE.
- Female sex
- Young onset: 15-45 years
- Drugs: Procainamide/Sulfasalazine/Isoniazid/ Phenytoin/ Carbamazepine
- Infection: EBV
How may Lupus present?
- Fever
- Tiredness
- Weight loss
Skin • Butterfly rash: cheeks + bridge of nose • Vasculitic lesions • Urticaria • Photosensitivity • Alopecia
Nervous system • Epilepsy • Migraine • Cerebellar ataxia • CN lesions • Polyneuropathy
Lungs
• Pleurisy/ pleural effusion
CV • Pericarditis/ Pericardial effusion • Myocarditis • Thrombosis • Atherosclerosis
GI • Abdominal pain • Vomiting • Diarrhoea • Dysphagia • Mesenteric vasculitis
Kidneys
• Glomerulonephritis
What skin lesion is typically present in Lupus?
Butterfly rash on cheeks and nasal bridge. Rash is photosensitive.
Urticaria
Vasculitis lesions
Alopecia
What blood test(s) are clinically suggestive of SLE?
• Antibodies: Anti-dsDNA; ANA; Anti-Ro; Anti-La and Anti-RNP may be seen in SLE
How do you treat SLE with joint symptoms and systemic disease?
• Anti-malarial: Hydroxychloroquine \+ • NSAIDs: Ibuprofen/Naproxen \+ • Corticosteroids: Prednisolone
± (Systemic disease)
• Immunosuppressants: Azathioprine/ Mycophenolate mofetil
How would you treat SLE which causes severe organ disease?
Severe Organ Disease
• IV Steroids
+
• Cyclophosphamide
and seek help from HDU
Describe Sjogrens syndrome.
Autoimmune disease featuring immunologically mediated destruction of epithelial exocrine glands via lymphocytic infiltration which also causes polyarthritis. Sjogrens syndrome may be primary or secondary to another autoimmune disorder – SLE, RA.
How may Sjogrens syndrome present?
- Dryness of the mouth (xerostomia)
- Dry eyes (keratoconjunctivitis sicca)
- Parotid gland swelling (parotitis)
- Arthralgia and fatigue
- Raynaud’s Phenomenon
- Angular stomatitis may occur
What are the diagnostic criteria for Sjogren’s Syndrome?
4 or more of:
• Ocular symptoms- dry eyes > 3 months (keratoconjunctivitis sicca), foreign body sensation, use of tear substitutes > 3 x daily
• Ocular signs- Schirmer’s test performed without anaesthesia (essentially see how wet some filter paper gets)
• Oral symptoms-dry mouth, recurrently swollen salivary glands, liquids aids used to swallow
• Oral signs- abnormal salivary scintigraphy
• Autoantibodies: Anti-Ro or Anti La antibodies
Mnemonic: Eyes, (Anti-)Ros and Mouth
What are the diagnostic criteria for Sjogren’s Syndrome?
4 or more of:
• Ocular symptoms- dry eyes > 3 months (keratoconjunctivitis sicca), foreign body sensation, use of tear substitutes > 3 x daily
• Ocular signs- Schirmer’s test performed without anaesthesia (essentially see how wet some filter paper gets)
• Oral symptoms-dry mouth, recurrently swollen salivary glands, liquids aids used to swallow
• Oral signs- abnormal salivary scintigraphy
• Autoantibodies: Anti-Ro or Anti La antibodies
Mnemonic: Eyes, (Anti-)Ros and Mouth