Isolated costotransverse joint tuberculosis - A rare location for tubercular arthritis

Background: Posterior element involvement of the spine with tuberculosis (TB) is very uncommon. Case Description: A 25-year-old immunocompetent female presented with dull mid-back ache and tenderness over the inferior angle of the left scapula and left 7 th costovertebral junction. The MRI showed erosion and enhancing soft tissue in the periarticular region of the left 7 th costotransverse joint. After the CT-guided biopsy confirmed the diagnosis of TB, she was successfully managed with antitubercular chemotherapy. Conclusion: In a 25-year-old female, the early diagnosis of atypical TB involving the left T7 costotransverse joint allowed for allowed for its successful treatment/resolution with antitubercular chemotherapy.