[A case of pulmonary tuberculosis complicated with multiple bone and joint tuberculosis]

A 29-year-old male complaining of fever and general fatigue was admitted to our hospital. On admission chest X-ray showed infiltrative shadows with cavities in the bilateral lung apical areas, and sputum examination for acid fast bacilli was smear positive, Gaffky 1. He was treated as pulmonary tuberculosis (TB), and chest X-ray findings and sputum examination improved after a few months of treatment with antituberculous chemotherapy (INH, RFP, EB, PZA). However, tuberculous cold abscess appeared in retropharyngeal area, subcutaneous tissue of thoracic cage and retroperitoneal space, and shortly later, bone and joint TB were recognized in shoulder and wrist joints and vertebrae. The findings of vertebral foci were not recognized by a simple X-ray picture of vertebrae. at that time, but MRI of vertebrae showed low intensity areas with ring enhancement in the cervical, thoracic and lumbar vertebrae. Despite treatment with antituberculous agents, new bone and joint TB had developed in many tissues and had accompanied with cold abscess in adjacent tissue, whereas pulmonary TB had improved after the initial transient worsening. The appearance of bone and joint TB was most probably caused by the initial transient worsening of hidden bone and joint TB as a part of the initial systemic transient worsening of tuberculosis. After treatment for 4 months, pulmonary TB as well as bone and joints TB had improved. Tuberculous cold abscess in retropharyngeal may be secondary to cervical vertebral TB but is now rarely seen. In this case, involvement in many tissues such as retropharyngeal area, subcutaneous tissue of thoracic cage and retroperitoneal space were seen, and these findings are now uncommon and usually represents involvement secondary to contiguous infection.