PMC9930877_01
Cervical X-ray presenting flowing calcification of the anterior ligament from the vertebral body of C3 to C6
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C*06:02 and DRB1*04, being HLA-B27 negative (Table 1). Cervical X-ray exhibited continuous calcification of the anterior longitudinal ligament, from the vertebral body of C3 to C6, with preserved intervertebral disc height (Fig. 1).
Plain X-ray of the sacroiliac joints showing signs of sacroiliitis grade 2
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Plain radiographs of the sacroiliac joints showed loss of definition of the edge and areas of sclerosis of both surfaces of the joints (Fig. 2).
MRI of the cervical and dorsal spine showing anterior osteophytes
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A magnetic resonance imaging (MRI) of the spine and sacroiliac joints was then performed, showing anterior osteophytes of the cervical and thoracic segments as well as unequivocal signs of active sacroiliitis with multiple areas of bone marrow oedema but no bone erosions (Fig. 3).
Whole body scintigraphy scan showing areas of high uptake of radionuclide
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Finally, a body scintigraphy revealed high uptake in the spine, sacroiliac, tibiotarsal, and tibiofibular joints consistent with areas of inflammation (Fig. 4).