| *H&P: Chronic low back pain in young men that is worse in the morning and improves throughout the day, associated with HLA-B27 serotype | | *H&P: Chronic low back pain in young men that is worse in the morning and improves throughout the day, associated with HLA-B27 serotype |
− | *Dx: X-rays of SI joint (earliest radiographic finding), "bamboo spine", squaring of lumbar vertebrae, kyphosis, ascending fusion of spinal column. Associated with apical pulmonary fibrosis (ILD), uveitis, aortitis, psoriasis, IBD | + | *Dx: X-rays show fusion of SI joints (earliest radiographic finding), squaring of lumbar vertebrae, kyphosis, ascending fusion of spinal column ("bamboo spine"). Associated with apical pulmonary fibrosis (ILD), uveitis, aortitis, psoriasis, IBD |