Charts of Rheum Flashcards
Name of nodules for RA?
Rheumatoid nodules
Nodules for Gout?
Tophus, tophi
Nodules for osteoarthritis?
Heberden’s nodes
Distribution for RA?
Cutaneous lesions found in skin overlying pressure points; can also occur in viscera
Distribution for Gout?
Articular cartilage of joints and periarticular ligaments; also occur in tendons, soft tissues, and ear lobes
Distribution for Osteoarthritis?
Distal interphalangeal joints
Appearance of RA?
Non-tender, round/oval nodules in subcutaneous tissues.
Fibrinoid necrosis with palisading epithelia histiocytes, adjacent lymphocytes and plasma cells
Appearance of Gout?
Large firm nodules found adjacent to involved joints, superficial top associated with ulceration of overlying skin
Appearance of Osteoarthritis?
Juxta-articular osteophytes
Pathogenesis of RA?
Deposition of immune complexes probably involving RF
Pathogenesis of Gout?
Aggregates of rate crystals surrounded by foreign body reaction involving macrophages, lymphocytes, and foreign body giant cells
Pathogenesis of Osteoarthritis?
Bony outgrowths
Who does osteoarthritis occur in?
Women, but not men
Inciting reaction for RA?
Immune response against self antigens
Immune mechanism for RA?
Cell mediated to type 2 collagen
RF-IgG immune complexes
Pathology for RA?
Fibrosis
Pannus formation
Joint destruction
Clinical association of RA?
HLA B27, DR1
EBV
RF: IgM anti-IgG
Inciting reaction of Juvenile RA?
Immune response against self antigens
Immune mechanism of JRA?
Cell mediated to type 2 collagen
Pathology of JRA?
Fibrosis
Pannus
Joint destruction
Clinical association of JRA?
ANA +
No RF
Inciting reaction of Ankylosing spondylitis (AKS)?
Immune response against self antigens
Immune mechanism of ASK?
Cell mediated response to joint elements secondary to infection
Pathology of ASK?
Chronic arthritis
Spondylosis
Clinical association of ASK?
HLA B27
Reiter’s syndrome (RS) inciting reaction?
Immune response against self antigens
RS immune mechanism?
Cell mediated response to elements secondary to infection
Pathology of RS?
Chronic arthritis
Clinical association of RS?
Prior Gentiourinary infection
80% HLA B27 +
Inciting reaction of Systemic Lupus Erythrematosus (SLE)?
Immune response against self antigens
Immune mechanism of SLE?
Types 2 and 3 hypersensitivity
Pathology of SLE?
Nonerosive synovitis
PMNS
Fibrin
Clinical association of SLE?
HLA DR2, DR3
Gout inciting reaction?
Immune response against uric acid crystals
Immune mechanism of gout?
Acute inflammation
Chronic lesions with granulomatous reaction
Pathology of gout?
Inflammation reaction to crystals
PMNs
Granulomatous inflammation
Clinical associations of Gout?
Genetic
Hyperuricemia
Tophi
Inciting reaction of post strep arthritis?
Cross reactive immune response against strep
Immune mechanism of post strep arthritis?
Immune complex type 3
Possibly type 2
Pathology of Post strep Arthritis?
Acute inflammatory response
PMNs
Clinical association with Post strep Arthritis?
Prior infection with Group A Strep
Rheumatic Fever
Serum sickness inciting reaction?
Immune response variety of antigens
Vaccines
Immune mechanism of serum sickness?
Immune complex Type 3 with acute inflammation
Pathology of Serum sickness/
Acute inflammatory response
PMNs
Clinical association of serum sickness?
Conditions which result in Ab:Ag complex formation
Inciting reaction of suppurative arthritis?
Seeding of joints with bacterial organims
Immune mechanism of Suppurative Arthritis?
Acute inflammation
Pathology of Suppurative Arthritis?
Inflammation reaction to organism
PMNs
Clinical association of Suppurative Arthritis?
Normal or deficiency of C5, C6, or C7
Inciting reaction of Osteoarthritis?
Chronic inflammatory response to joint erosion
Immune mechanism of Osteoarthritis?
Chronic inflammation
Pathology of Osteoarthritis?
Chronic inflammation reaction
Reactive Chondrocytes
Clinical associations of Osteoarthritis?
Idiopathic
Trauma