Arthritis Flashcards
Subluxation, dislocation common in
RA. SLE
Diffuse osteoporosis
Only in RA
Normal mineralization
All arthritides except RA
Aggressive erosion ( no sclerotic borders, no reparative bone)
RA
Psoriasis
Non eggresive erosion (fine sclerotic border)
Gout
Erosion in central portion
OA
Periosteal new bone formation
Psoriasis
Reiters syndrome
Ankylosis (bridging of a joint)
Inflammatory arthropathies
Overhanging of edges
Gout
Sunchondral bone
OA
Osteophytes
OA
Maintenance of joint space
Only gout and PVNS maintain normal joint space in progressive disease
Uniform narrowing
All arthritis except OA
Eccentric narrowing
OA
Wide joint space
Early inflammatory
Proximal joints
RA
CPPD
AS
Distal joints
Reiters
Psoriatic
Symmetrical
RA
Swelling symmetrical around joint
Seen in all but mc in RA
Asymmetrical swelling
MC OA
Lumpy bumpy sts
Gout (tophus)
Swelling of entire digit
Psoriasis, reiters
Subq tissue calcification
Scleroderma
Calcification in cartilage
Calcium pyrophosphate dihydrate
Degenerative joint disease
Osteophytes
Subchondral sclerosis
Uneven loss of articular space
Inflammatory arthritis
Unmarginated erosions
Periarticular osteoporosis
Sts
Uniform loss of articular space
Aggravated by joint use, relieved by rest
OA
Morning stiffness
OA
5 Hallmarks of OA
Asymmetric narrowing of joint space
Subchondral sclerosis
Subchondral cysts
Osteophytes
Lack of osteoporosis
Heberden’s nodes
OA
Bouchard’s nodes
OA
Gullwing pattern
Marginal proliferation
Central erosio
OA
Superolateral migration of femoral head
OA
Joint space is narrowest superiorly at weight-bearing portion
OA
Medial femorotibial compartment is commonly narrowed
OA
Vaccum phenomenon pathognomonic of
OA
Acroosteolysis: tift resorption
Scleroderma
Widespread soft tissue calcification
Dermatomyositis
Triad of reiters syndrome
Urethritis
Conjunctivitis
Arthritis
Ivory phalanx
Sausage digit
Pencil in a cup
Mouse ears
Tuft resorption
Psoriatic arthritis
Fused SI joints
Ankylosing spondylitis- more common
Reiters syndrom