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Dorsal spine involvement is a common association of spinal tuberculosis
or Pott's spine. If there is associated ongoing fever
, reduced appetite, loss of weight or previous tuberculosis/tuberculosis exposure, tuberculosis is most likely. Blood counts, erythrocyte sedimentation rate
, DNA PCR and montoux test are the initial set of investigations that would be needed.
Other causes could be degenerative osteoporosis
/ tumour / secondary metastatic lesions. Bone scans will be able to differentiate and rule them out.
Hope this information is helpful.