Posterior spinal tuberculosis or arch tuberculosis is a form of skelet
al tuberculosis that selectively involves the vertebral arch. It may m
imic skeletal neoplasm clinically and radiographically. Although poste
rior spinal tuberculosis has been reported in developing countries it
has rarely been found in the United States. As a result, there is limi
ted information about this entity in the US literature. We are present
ing our experience in a patient born in the United States.