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Erschienen in:
31.05.2016 | Classics in Abdominal Imaging
Classics in abdominal imaging: the bamboo spine
Erschienen in: Abdominal Radiology | Ausgabe 10/2016
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Ankylosing spondylitis (AS) is one of the seronegative spondyloarthropathies, a group of conditions positive for the presence of HLA-B27, but negative for rheumatoid factors [1]. Bamboo (Fig. 1) has been used as a metaphor for the “classic” appearance of late spinal changes of AS that can be seen on abdominal images (Fig. 2).
Fig. 1
Stalks of bamboo
Fig. 2
The “bamboo spine” as seen on A, a frontal abdominal radiograph and B, a sagittal reformatted, abdominal CT. Images demonstrate vertical syndesmophytes (blue arrows), resulting in spinal fusion reminiscent of a bamboo stalk. The radiographic and CT images also demonstrate ossification along the spinous processes (red arrows) creating a continuous thin column of bone (i.e., the “dagger sign”)
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