Fig. 3From: Esophageal perforation following pedicle screw placement for the treatment of upper thoracic spinal tuberculosis: a case report and review of the literatureCT examination showed that the right screw of T4 vertebra was too long, penetrated the anterior edge of vertebra and occupied the anatomical position of oesophagus (red arrow), sagittal cuts along with direction of the screws were showed in a-b and axial cuts at all levels were showed in c-fBack to article page