1. Dog bones-Congenital hip dysplasia 2 nd OA

2. Congenital hip dysplasia-2 nd OA, small head to neck ratio

3. Multi epiphyseal dysplasia (w/dwarfism) 2ndOA

4. Acromegaly=diabetes(inc GH) + 2nd OA

5. Acromegaly

6. Achrondoplasia-bowing and overgrowth of joint ends 2 nd OA

7. Ochronosia-alkaptonuria (autosomal recessive) results in black discoloration of cartilage due to deposition of polymers of homogentisic acid.

8. Ochronosia-2 nd OA vertebra patella

9. JRA

10. Hemophilia-2 nd OA knee Recurrent hemarthroses lead to pannus

11. Hemophilia-2 nd OA radial head

12. Hemophilia-2 nd OA blue=Fe

13. Hemophilia-2 nd OA ankylosis

14. Acute staphylococcal arthritis.

15. Acute hemorrhagic synovitis secondary to staphylococcal infection

16. Acute suppurative bacterial infection

17. Acute suppurative bacterial infection apple core- shaped remnant w/ residual exuberant synovial reaction around joint.

18. Acute gonococcal arthritis (common in wrist)

19. Lyme Dz

20. Lyme disease (erythema chronic migrans) skin

21. Vascular thickening w/ Lyme Dz

22. Lyme Dz-silver stain for spirochete

23. TB arthritis-pannus (can lead to ankylosis)

24. TB arthritis-giant cell

25. TB arthritis-Acid fast stain

26. RA-MP, PIP (spare DIP)

27. RA-ulnar deviation

28. Hypertrophic villous synovitis in RA.

30. Fibrinoid necrosis in synovium in RA (T cells)

31. RA-pannus

33. RA-rice bodies

34. RA-rheumatoid nodule

36. Rheumatoid nodule in lung shows typical fibrinoid necrosis.

37. Rheumatoid nodule in myocardium-conduction problem

38. Pericardium in patient with rheumatoid arthritis shows typical fibrinoid necrosis

39. Acute valvulitis from rheumatic fever (no arthritis)

40. Active rheumatoid vasculitis

41. Rhematoid vasculitis in a nerve biopsy

42. polyarteritis nodosa

43. giant cell arteritis

44. rheumatoid tendonitis

46. RA in spine

47. RA-Fibrinoid necrosis of intervertebral disc in cervical spine

48. RA in spine

49. RA-compress spinal cord

50. JRA

51. Still’s dz-Femoral head small and elongated due to inflammation.

52. Sago spleen-amyloid (AA) in RA

53. Kidney-amyloid (AA) in RA

54. Sjøgren’s syndrome

56. Felty’s syndrome is a combo of vasculitis, hypersplenism, severe RA, and intractable leg ulcers.

57. Felty’s syndrome-big spleen

58. Anti-DNA protein antibody bound to nuclei after contact with serum from RA patient and staining with fluorescent anti-human IgG.

59. SLE patient-villous synovitis;also osteoporosis due to taking steroids

60. Necrosis of end of finger in patient with RA and cryoglobulinemia

61. Scleroderma

62. Scleroderma patient w/ circulating cryoglobulins and Raynaud’s phenomenon

63. ankylosing spondylitis (bilateral sacroiliitis)

64. ankylosing spondylitis Bone bridges=rigid spine

65. Chronic iritis in ankylosing spondylitis

66. acute synovitis in Reiter’s sydrome

67. Reiter’s syndrome

68. Reiter’s syndrome- balanitis circumscripti

69. psoriatic arthritis

70. psoriatic peripheral arthritis (arthritis mutilans)

71. psoriatic arthritis-hourglass distal phalange