Reviewer response for version 1

Abstract

Procalcitonin is a biomarker, potentially useful in the diagnosis of sepsis and severe bacterial infections. Few studies have examined the usefulness of this biological marker in the diagnosis of tuberculous spondylodiscitis. We report the case of a 37-year-old woman with an unremarkable medical history who was newly diagnosed with tuberculous spondylodiscitis while the procalcitonin test was negative. This case confirms the hypothesis that procalcitonin is not a useful parameter to support the diagnosis of primary tuberculous spondylodiscitis.