Imaging examination of thoracic tuberculosis

X-ray shows that bone destruction and intervertebral space stenosis are the main preparations. The central bone destruction is concentrated in the center of the vertebral body. Compared with the lateral radiograph, it is clear that the vertebral body is compressed into a wedge shape, which is narrow in front and wide in back, and can invade the intervertebral disc every time. Marginal bone destruction is concentrated on the upper or lower edge of vertebral body and quickly invades the intervertebral disc, which is characterized by vertebral endplate destruction and progressive intervertebral space stenosis, and involves two adjacent vertebral bodies. Wedge bone destruction and wedge compression are not as obvious as the central type, so kyphosis is not heavy.

Cold abscess: on the lateral radiograph of cervical vertebra, the soft tissue shadow in front of the vertebra is widened and the trachea moves forward. On the chest radiograph, the soft tissue shadow beside the vertebral body can be spherical spindle or tubular, unlike the general asymmetry. Abscess of psoas major appears as vague shadow on one side of psoas major, or the shadow of psoas major is widened, full or locally raised on the front radiograph of lumbar spine. Many calcified shadows can be seen in chronic cases.

CT examination can clearly show the focus, whether there are cavities or dead bones. CT examination can even find a small paraspinal abscess. CT examination has a unique value for large abscess of lumbar muscle.

MRI has the value of early diagnosis, and can display abnormal signals in the stage of inflammatory infiltration, but it is mainly used to observe whether the spinal cord is compressed or degenerated.