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  • Title: [Tuberculous lymphadenitis: a clinical study of 23 cases].
    Author: Ueda T, Murayama T, Hasegawa Y, Bando K.
    Journal: Kekkaku; 2004 May; 79(5):349-54. PubMed ID: 15211875.
    Abstract:
    INTRODUCTION: Tuberculous lymphadenitis is a relatively rare disease in adults. In the absence of pulmonary tuberculosis, tuberculous lymphadenitis is very difficult to differentiate from other diseases. We described our experiences of patients with tuberculous lymphadenitis. RESULTS: We diagnosed 23 patients with tuberculous lymphadenitis out of 207 patients with tuberculosis. Their ages ranged from 18 to 99 years (mean, 45.7 years), and the male-to-female ratio was 7:16. The most common complaints were cervical mass and fever. With the exception of two patients, all diagnosed patients had a strong positive skin test to tuberculin. Observing the site of affected lymph nodes, 16 patients had cervical node involvement, 3 patients had axillary node involvement, 7 patients had mediastinal node involvement, 3 patients had hilar node involvement, 3 patients had abdominal node involvement, and 1 patient had inguinal node involvement. Fifteen patients had neither hilar nor mediastinal node involvement. Eleven patients had no tuberculous lesions other than lymphadenitis. Seven patients underwent biopsy of the lymph nodes. Four of these patients had the evidence of acid-fast bacilli. The remaining three patients were also diagnosed histologically. Five patients underwent fine needle aspiration. Two of them had the evidence of acid-fast bacilli. Acid-fast bacilli were detected in 10 out of 16 sputum samples and in 1 out of 2 pleural effusion samples. Five patients were diagnosed clinically by image (Computed tomography etc.) and by therapeutic effect. Eleven cases underwent contrast-enhanced computed tomography (CT) of the lymph nodes. Seven cases showed central low attenuation with peripheral rim enhancement, whereas the other four cases showed homogeneous attenuation. All patients received chemotherapy for a mean duration of 14.5 months (range, 6-30 years) with apparent improvement, but 1 patient relapsed. CONCLUSION: Tuberculous lymphadenitis remains one of important targets for the differential diagnosis of lymphadenopathy. It is essential that a peripheral lymph node biopsy be performed and examined either histologically and/or microbiologically. A tuberculin skin test and contrast-enhanced CT imaging should also be performed.
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