Spondyloarthropathies Flashcards
What is sacroilitis
inflamm of the sacroiliac joint
what is dactylitis
a sausage shaped swelling of finger or toe
what is enthesitis
inflamm of the enthesis (a site where a ligament or tendon inserts into a bone)
What is ankylosing spondulitis
Back pain and stiffness in adolescence and early adulthood
morning stiffness
insidious back pain worsening with inactivity
Criteria for dgx ankylosing spondylitis
limited lumbar motion
low back pain for 3 months; improved with exercise, not relieved by rest
reduced chest expansion
sacroilitis on xray
What is HLA-B27
It is a genetic marker in the blood that is genetic and can increase risk of developing spondyloarthropathy
What you will see on radiology
The joint space is narrowed and shows erosions
Along the spine, you can see fibrosis connecting vertebrae
Nonvertebral sx of spondyloarthropathies
asymmetric peripheral arthritis arthritis of the toe IP joints sausage digits achilles tenosynovitis plantar fasciitis costochondritis iritis/uveitis mucocutaneous lesions (rare)
Patterns of arthritis in psoriasis
spondylitis DIP joint arthritis oligoarticular asymmetric arthritis polyarticular symmetric arthritis arthritis mutilans
Clinical signs of psoriatic arthritis
inflamm arthritis in DIPs asymmetric arthritis sausage digits Nail pitting or onycholysis NO rheumatoid nodules negative RH factor erosive arthritis sacroilitis syndesmophytes paravertebral ossification enthesopathy
Radiographic features of psoriatic arthritis
“pencil in cup” joint erosions
What is reactive arthritis
Triad of arthritis, urehritis, and conjunctivitis but most pts do not have all three of these
What is reactive arthritis assoc with
inflamm eye disease
balanitis, oral ulceration, or keratodermia
enthesopathy
sacroilitis
What is one lab that 80% of pts are positive for with reactive arthritis
HLA-B27
Clinical signs of reactive arthritis
larger joints, sacroilitis, enthesitis (ex.achilles tendonitis), dactylitis
dysuria, urethral discharge, prostatitis, balanitis or vulvitis
conjunctivitis, iritis, keratitis
lesions on skin, keratoderma blenorrhagicum