Joints Flashcards
arthritis due to the aging process and involves no other predisposing dz
primary arthritis
Progressive erosion of articular cartilage
osteoarthritis
Where is the cellular basis of osteoarthritis?
chondrocytes
Heberdon nodes (DIPs)
Osteoarthritis
on x-ray, joint space narrowing, marginal osteophyte formation, subchondral bone cysts, and sclerosis
osteoarthritis
Fibrous-lined cysts in the subchondral bone
progressive osteoarthritis
These structures develop about the margins of the osteoarthritic joint
bony outgrowths (osteophytes or bone spurs)
chronic, systemic inflammatory dz of uknown cause, characterized by polyarthritis which is often progressive and deforming
Rheumatoid arthritis
~80% of RA cases are associated with a group of … called…
anti IgG autoantibodiees; rheumatoid factor
RA also has an association with certain … such as … encoded within ….
class II antigens; HLA-DR4; major histocompatibility complex
RA is (monoarticular/polyarticular), (unilateral/bilateral), and (symmetrical/non symmetrical)
polyarticular, bilateral, symmetrical
Bilateral, symmetrical, fusiform swelling and redness of the fingers at the PIP joints
Rheumatoid arthritis
The primary joint lesion in RA occurs in the … of affected joints and is called … and ….
synovial membrane; diffuse proliferative and exudative synovitis
multiple layers of proliferated (hyperplastic) synoviocytes along with lymphocytic infiltration
rheumatoid synovitis
What is Felty’s syndrome?
RA with splenomegaly and manifestations of hypersplenism (i.e. leukopenia)
Inc lymphocytic infiltration in synovial fluid
RA
chronic systemic polyarthritis of uknown etiology with onset at less than 16yo
Juvenile idiopathic arthritis
newer, more specific test for RA
anti-citrulated protein antibody
JRA is usu (symmetrical/non symmetrical)
symmetrical
group of dzs characterized by inflammatory arthritis which most often in association with other conditions
seronegative spondyloarthropathies
chronic inflammatory jt dz of the axial skeleton, esp the SI jts
ankylosing spondylitis
Approximately 90% of cases of ankylosing spondylitis are … positive
HLA-B27
boney outgrowths can fuse and produce spinal progressive low back pain
ankylosing spondylitis
Chronic synovitis causes destruction of articular cartilage. Inflammation of the insertions of tendons and ligaments leads to boney outgrowths.
Ankylosing spondylitis
“bamboo spine”
ankylosing spondylitis