From the case: Ankylosing spondylitis

X-ray
Frontal
Modality: X-ray (Frontal)

- “ Ankylosing spondylitis is a seronegative spondyloarthropathy (HLA B27 positive) that mainly affects the axial skeleton including the spine and sac...”

Used in the following article:

  • Ankylosing spondylitis - “ Ankylosing spondylitis (less commonly known as Bechterew disease and Marie Strümpell disease) is a seronegative spondyloarthropathy, which results...”
  • Bamboo spine (ankylosing spondylitis) - “ Bamboo spine is a radiographic feature seen in ankylosing spondylitis that occurs as a result of vertebral body fusion by marginal syndesmophytes....”
  • Dagger sign (spine) - “ The dagger sign is a radiographic feature seen in ankylosing spondylitis as a single central radiodense line on frontal radiographs related to oss...”

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