x-ray of thoracic spine: bony ankylosis of posterior elements at T11-T12
x-ray of thoracic spine: bony ankylosis of posterior elements at t11-t12
x-ray of thoracic spine: bony ankylosis of posterior elements at T11-T12 (procedure)
x-ray of thoracic spine: bony ankylosis of posterior elements at t11-t12 (procedure)