[A case of cervical-mediastinal lymph node tuberculosis progressed to pulmonary lesion through a bronchial fistula]

The patient was a 25-year-old man who had been admitted to a local hospital due to fever and trachelophyma. Tubercle bacillus was detected in pus culture obtained by biopsy of the trachelophyma, but not in sputum culture. Because combined therapy with 3 antituberculous drugs (RFP, INH and SM) failed to reduce the fever or drainage from the biopsy region, the patient was transferred to our hospital. Chest X-ray films taken on admission revealed dilatation of the superior mediastinal shadow; chest CT images revealed cervical and mediastinal lymphadenopathy and an anterior mediastinal abscess, but no pulmonary lesion. About 2 months after admission, cough developed and Gaffky type 2 was detected in the patients sputum. Bronchoscopy and bronchography revealed a bronchomediastinal fistula. Forty days after the onset of cough, reticulogranular shadows were observed in the right upper lobe on chest X-ray films, and a diffuse centrilobular lesion was observed in the right upper lobe on chest CT images. From these clinical observations, the patient was given a diagnosis of cervical-mediastinal lymph node tuberculosis, which had progressed to pulmonary lesion through a bronchial fistula due to lymphadenitis.