Radiology Notes

My notes during radiology residency, fellowship, and beyond…

Archive for the ‘arthritis’ Category

SAPHO

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  • Synovitis, Acne, Pustulosis, Hyperostosis, Osteitis
  • soft tissue calcification between medial clavicle, anterior upper ribs, manubrium
  • HLA-B27 positive

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Written by lmwong

January 21, 2010 at 8:32 pm

Erosive Arthritis

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  • osteoarthritis with inflammatory symptoms
  • middle-aged women
  • gull-wing appearance of DIP

Written by lmwong

January 21, 2010 at 8:21 pm

Posted in arthritis, bone, msk

Reactive Arthritis

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  • Reiter syndrome = conjunctivitis, urethritis/cervicitis, arthritis
  • RF negative, 80% HLA-B27 positive
  • prior Chlamydia, Salmonella, Shigella, Yersinia, Campylobacter infection
  • calcaneal erosive disease and spur formation
  • M>F

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Written by lmwong

January 21, 2010 at 8:17 pm

Posted in arthritis, bone, foot, msk

Psoriatic Arthritis

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  • asymmetric erosion
  • bone production
  • normal bone density
  • 5 patterns
    • oligoarthritis (sausage digit)
    • polyarthritis (DIP>PIP/MCP) = DIP fusion, periostitis
    • symmetric
    • arthritis multilans (pencil-in-cup)
    • spondyloarthropathy (biltaeral SI)

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Written by lmwong

January 21, 2010 at 8:00 pm

Posted in arthritis, bone, msk

Ankylosing Spondylitis

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  • HLA-B27 positive
  • M>F
  • adolescents
  • findings
    • bilateral SI erosion –> ankylosing
    • bamboo spine
    • large central joints > small peripheral
  • SI findings similar in spondylitis of inflammatory bowel (UC > Crohn’s and Whipple’s)

    Written by lmwong

    January 21, 2010 at 7:45 pm

    Posted in arthritis, bone, msk, pelvic, pelvis, spine

    Charcot’s Joint

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    • neuropathic arthropathy
    • five D’s
      • normal bone density
      • joint distension
      • bony debris
      • joint disorganization
      • dislocation
    • large effusions
    • Lisfranc’s dislocation in diabetic foot
    • knee = tabes dorsalis, DM
    • shoulder = syringomyelia
    • spine = DM, iatrogenic

    Written by lmwong

    January 20, 2010 at 11:00 am

    Posted in arthritis, bone, msk

    Juvenile Rheumatoid Arthritis

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    • group of diseases
      • Still’s disease
      • Pauciarticular disease (MC)
      • Seronegative polyarticular disease
      • Seropositive polyarticular disease
      • Juvenile ankylosing spondylitis
    • findings
      • soft tissue swelling
      • periosteal reaction
      • early bone maturation (early ossification, overgrowth of epiphyses)
      • carpal fusion
      • c spine ankylosis and “waisting” of the bodies
      • joint contractions
    • knee, elbow, hips

    Written by lmwong

    January 20, 2010 at 10:09 am

    Posted in arthritis, bone, msk