This case demonstrates a rather extreme example of tuberculous spondylodiscitis.
A gibbus deformity has occurred secondary to a severe T12/L1 spondylodiscitis, with impingement of the spinal cord, just proximal to the conus.
The following collections are present :
bilateral psoas
anterior and posterior vertebral (subligamentous)
deep subcutaneous
erector spinae and quadratus lumborum