RA, Seronegative Athropathies and Gout Flashcards
If a patient presents with SYMMETRICAL arthritis, what should you be thinking?
RA
What are some systemic symptoms with RA and what markers are elevated?
Fatigue Fever Myalgia Anemia -- Elevated ESR/CRP
What genetic marker is RA associated with?
HLA-DR4
Describe the pathophysiology of RA
- Joint changes precede synovitis
- Infiltration of inflammatory cells activates T cells
- B cells produce autoantibodies and cytokines
- Pannus invades cartilage and bone
Describe the pathophysiology of RA
- Joint changes precede synovitis
- Infiltration of inflammatory cells active T cells
- B cells produce autoantibodies and cytokines
- Pannus destroys cartilage and bone
An RA score greater than ___/10 indicates RA
> 6/10
Where do articular manifestations start with RA?
Hands/feet and C1-C2 (not axial spine)
Why should you not flex the neck of RA patients?
C1-C2 may sublux
What finger deformities are associated with RA?
Swan-neck
Boutonniere
Ulnar deviation
When will RA patients have stiffness?
Morning stiffness > 1 year
Pyoderma Gangrenosum
– Can be seen with RA
= Tender purple papule –> necrotic non-healing ulcer
Rheumatoid Vasculitis
– Can be seen with RA
= Digital infarct
Patients with RA have an increased risk of what?
Heart manifestations – CAD
What other autoimmune disease that affect the secretions of the eye/mouth/vagina can occur with RA?
Sjogren’s Syndrome
Spondyloarthropathies are disorders that share clinical features and have (-)?
(-) serum markers
What HLA is often associated with the Spondylarthropathies?
HLA-B27
What HLA is often associated with the Spondylarthropathies?
HLA-B27
What locations in the body do Spondylarthropathies often affect?
Spine
SI joint
What are 4 Spondyloarthropathies?
Ankylosing Spondylitis
Reactive Arthritis
Psoriatic Arthritis
Enteropathic Arthritis
What are the symptoms of Ankylosing Spondylitis?
Low back pain
Decreased mobility
Plantar Fasciitis (heel pain)
What test can be used to assess the lumbar spinal immobility with Ankylosing Spondylitis?
Schober test
– restricted forward flexion
Besides restricted forward flexion of the spine, what else will be seen on physical exam with Ankylosing Spondylitis?
Decreased chest expansion
How will the vertebrae look with Ankylosing Spondylitis?
Squaring and shiny corners (sclerosis)
What are Syndesmophytes and what are they seen with?
Bony bridges between vertebrae that cause ankylosis (fusion)
– seen with Ankylosing Spondylitis
Reactive Arthritis is often associated with?
Infection
What is Dactylitis?
Swollen finger or toe
What are some symptoms of Reactive Arthritis?
- can’t see, can’t pee, can’t climb a tree
- - also see: Dactylitis
What manifestation can Reactive Arthritis cause on the glans penis?
Circunate balantis
What manifestation can Reactive Arthritis cause on the soles of the feet?
Keratoderma Blennorrhagicum
With imaging, how does the SI joint look with Reactive Arthritis?
Asymmetrical SI
What hand changes can be seen with Psoriatic Arthritis?
Nail pitting
Pencil in cup deformity on imaging
Pitting nails, arthritis and pencil-in-cup deformity is likely?
Psoriatic Arthritis
What is Enteropathic Arthritis?
Arthritis associated with Crohn’s disease or Ulcerative Colitis
Enteropathic Arthritis may have extra-articular symptoms as well. Which IBD is more often seen with them?
Crohn’s Disease
Enteropathic Arthritis affects ___ joints of LE and ____ joints of UE
Larger joints of LE
Smaller joints of UE
When does the stiffness present/improve with Ankylosing Spondylitis?
Morning stiffness that improves with exercise
What type of crystals and shape present with Gout?
Monosodium Urate Crystals
- Needle shaped
- (-) birefringent
Where does Gout usually present first?
1st MTP joint
Acute gout is often worse when?
At night
Chronic gout will present in what odd locations as well?
Ear, forearms and renal insufficiency
Do you treat asymptomatic hyperuricemia?
NO
Do you treat acute gout with agents to lower uric acid?
NO
Pseudogout
Calcium Pyrophosphate Deposition Disease
Pseudogout often occurs where?
Knee or larger joints
What shape are the crystals with Pseudogout?
Rhomboid shape
- (+) birefringent
Chrondrocalcinosis is seen with?
Pseudogout
= Calcium deposits in the cartilage