ARTHROPATHY-SERONEGATIVE Flashcards
group of rheumatic diseases that are linked in that they share a variety of clinical, radiographic and familial genetic features
spine involvement
inflammatory arthropathies mimic RA but are rheumatoid
asymmetric
arthropathy-seronegative
types
ankylosing spondylitis
reactive arthritis
psoriatic arthritis
enteropathic arthritis
key differences from RA?
inflammatory enthesopathy
ossification and new bone growth in response to erosive changes
end stage bony ankyloses in joints, rear foot for RA
name this type of SA:
infection induced systemic illness with individuals predisposed to HLA B27 promoted by pathogen
most common peripheral arthritis in young men
ie chlamydia
reactive arthritis
name this reactive arthritis?
lack of evidence of urethritis or conjunctivitis
incomplete reactive arthritis
key clinical pedal presentations?
**from RA
acute heel pain
asymmetric dactylitis
Hallux IP joint attack
arthritis
***pedal distribution:
PIP and/or DIP joint attack
Hallucal IPJ circumferential, whereas RA affects medial
key delineating feature during acute attack?
erosive and proliferative arthritis, again affects circumferential (lateral and medial)
underlying radiologic features?
erosive and proliferative arthritis
medullary and or subchondral sclerosis
intra articular bony ankyloses
acro osteolysis
remember the key points between RA and SA:
asymmetric new bone formation and sclerosis more PIP and DIP involvement acro osteolysis formation less cyst formation more entheseopathy
major differences from RA
key difference between RA and Psoriatic arthritis?
bony proliferation, so if see boney ankyloses pick psoriatic arthritis
dactylitis
acrosclerosis and acro osteolysis common
ivory phalanx syndrome
calcaneus sites for reactive arthritis?
1,2,4
calcaneus sites for psoriatic arthritis?
2,3,4,5
calcaneus sites for ankylosing spondylitis?
2,3,4,5
differential for enteropathies?
seronegative arthritis
gonococcal arthritis
DISH
