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Ann Thorac Surg 2005;79:964-967
© 2005 The Society of Thoracic Surgeons
Department of Thoracic Surgery, National Hospital Organization Tokyo Hospital, Tokyo, Japan
Accepted for publication September 2, 2004.
* Address reprint requests to Dr Sakuraba, Tokyo Women's Medical University, School of Medicine, Department of Surgery I, Kawadacho 81 Shinjuku-ku, Tokyo, Japan, 1628666 (E-mail: bt3m-skrb{at}asahi-net.or.jp).
| Abstract |
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METHODS: We retrospectively reviewed the records of 13 patients who underwent surgical treatment of tuberculous abscess in the chest wall between January 1994 and December 2003 at National Hospital Organization Tokyo Hospital.
RESULTS: There was a past history of tuberculosis in 3 patients, concomitant active pulmonary tuberculosis in 5, concomitant active tuberculosis in the neck lymph node in 1, and no antecedent tuberculosis in 4. The locations of the tuberculous abscesses were right chest wall in 8 patients, left chest wall in 3, and anterior chest wall in 2. All of the patients underwent surgical treatment. In all patients, postoperative antituberculous treatments were administered. The combination regimens consisted of isoniazid (400 mg/d), rifampicin (450 mg/d), ethambutol (750 mg/d), pyrazinamide (1,500 mg/d), or some combination of these, and the duration ranged more than 6 months. Postoperative complications were not seen, and there was no recurrence.
CONCLUSIONS: We recommend a complete resection of the abscess with rib resection, and postoperative treatment by tuberculous chemotherapy regimen. We consider that these treatments reduce postoperative recurrence.
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| Material and Methods |
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| Results |
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All patients underwent surgical treatment. After open drainage, many cases underwent radical surgery. In 4 patients, radical surgery was performed first. Debridement of the abscesses and costal resection were performed in 10 patients, debridement, costal resection, and partial resection of the sternum in 1 patient, and only debridement in 2 patients. The duration required for the open wounds to close and be covered with skin ranged from 13 to 241 days (mean, 79.9 days) in 9 patients (Table 3). The debrided specimen revealed acid-fast bacilli in 6 patients. Polymerase chain reaction for M tuberculosis was positive in 2 patients, and culture for M tuberculosis was positive in 2 patients. Histologic findings of the debrided specimens showed typical lesions of tuberculosis, giant cells, and caseous necrosis in 8 of the 13 patients (Table 2).
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There are four mechanisms in the pathogenesis of tuberculous abscess in the chest wall. First, there is a pleural thickening, and a visceral pleura adheres to a parietal pleura by the tuberculous pleural lesions. Lymphatics are developed by the inflammation and anastomose with the lymphatic network in the chest wall. Mycobacterium tuberculosis flows into the lymphatics, constructs caseous necrosis and fistula in the new lymphatics, and reaches the soft tissue of the chest wall. It then constructs caseous necrosis in the regional lymph nodes involving the surrounding soft tissue. Second, a chest wall abscess develops by means of a localized empyema from the tuberculous pleuritis and ruptures the soft tissue of the chest wall. Third, M tuberculosis in the thoracic cavity disseminates the soft tissue of the chest wall at the time of puncture in the tuberculous pleural effusion and empyema. Fourth, M tuberculosis infiltrates by means of blood the soft tissue of the chest wall by miliary tuberculosis, and constructs the abscess [8]. In our study, we supposed the first or second pathogenesis in the cases with no antecedent tuberculosis.
The diagnosis of tuberculous abscess in the chest wall is made by bacteriologic examinations for detecting acid-fast bacilli, polymerase chain reaction, or culture of aspiration specimens or postoperative specimens. Faure and associates [2] reported only a 36.3% (4 of 11 patients) success rate of diagnosis by needle aspiration. Nonaka and coworkers [9] reported that the positive rate of acid-fast bacilli was 35% and the positive rate of culture was 60%. In our study, of the 4 patients in whom needle aspiration was performed, all were positive in acid-fast bacilli, 2 were positive in polymerase chain reaction, and 1 was positive in culture. It is difficult to distinguish subcutaneous tuberculous abscess in the chest wall. In our hospital, we perform incisional biopsy for the subcutaneous mass under localized anesthesia. When it is an abscess we try to drain it at the same time. However, after drainage, it is not always cured by antituberculous treatment only; therefore, it is often necessary to perform surgical treatment. Seven of the 13 cases were positive cases of acid-fast bacilli, 3 were positive cases of polymerase chain reaction, and 5 were positive cases of culture.
The treatment of tuberculous abscess in the chest wall is controversial. A few studies have reported successfully treating patients with a current chemotherapy regimen [1, 10, 11]; however, the total number of patients treated by the preceding authors was small, and the follow-up was sometimes too short. Faure and associates [2] and other authors have reported recurrence of tuberculosis by the antituberculous treatment only. The combination of surgical and antituberculous treatments is recommended for reducing the recurrence of tuberculosis. We use indigo carmine for injection into the abscess cavity to define the lesion, and resect all of the stained tissue. When we resected the involved ribs or sternum and performed debridement of the abscess, there was no postoperative recurrence at our hospital. In the basic treatment in our hospital, a radical resection is done after antituberculous treatments at the diagnosis of tuberculous abscess in the chest wall or the suggestion of it.
The postoperative treatment has been considered to be a tuberculous chemotherapy regimen comprising isoniazid, rifampicin, and ethambutol for 6 months, and often pyrazinamide was added. Paik and colleagues [3] recommended a 6-month regimen comprising isoniazid, rifampicin, and pyrazinamide for 2 months followed by isoniazid and rifampicin for 4 months.
In conclusion, we recommend complete resection of the abscess with rib resection, and postoperative treatment by tuberculous chemotherapy regimen. We consider that these treatments reduce postoperative recurrence.
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