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Case Reports in Pulmonology
Volume 2011 (2011), Article ID 502639, 3 pages
Spontaneous Resolution of Massive Spontaneous Tubercular Pneumothorax
Department of Pulmonary Medicine, Chhatrapati Shahu Ji Maharaj (Erstwhile King George) Medical University, Uttarpradesh Lucknow 226003, India
Received 7 November 2011; Accepted 4 December 2011
Academic Editors: J. Bordon, S.-Y. Lee, and H. Milburn
Copyright © 2011 Surya Kant et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
A 29-year-old female presented with complaints of fever and productive cough of three weeks duration. Pulmonary tuberculosis was diagnosed bacteriologically and she was prescribed antituberculosis drugs. During follow-up she developed massive pneumothorax, for which patient refused surgical management and was managed conservatively. After six months there was complete spontaneous resolution of pneumothorax. The unusual presentation and unexpected outcome prompted us to report this case.
Spontaneous pneumothorax during the course of active pulmonary tuberculosis is a well-known complication with an incidence of 0.6−1.4% [1, 2]. There are published case reports on spontaneous resolution of traumatic pneumothorax with conservative management [3, 4]. Here we present one that may be the first case of spontaneous resolution of massive pneumothorax secondary to tuberculosis.
2. Case Report
A 29-year-old nonsmoker lady presented to our department with complaints of fever and productive cough of three-week duration. Her chest radiograph showed bilateral infiltrates more so in upper zones (Figure 1). She had normal haematological and biochemical parameters. There was no clinical evidence of any immunosupression. Acid fast bacilli were found in sputum smears and subsequently culture demonstrated Mycobacterium tuberculosis. She was advised of category 1 regimen of the Revised National Tuberculosis Control Programme of India which consists of isoniazid, rifampicin, ethambutol, and pyrazinamide three times weekly for 2 months followed by isoniazid and rifampicin three times weekly for 4 months, but she refused the same and was prescribed daily regimen consisting of isoniazid (300 mg), rifampicin (450 mg), ethambutol (600 mg), and pyrazinamide (1250 mg) for two months followed by isoniazid (300 mg) and rifampicin (450 mg) for four months. After three months of chemotherapy she was readmitted in our emergency department with complaints of left-sided pleuritic chest pain and exertional breathlessness. Her chest radiograph showed pneumothorax on left side (Figure 2(a)) and corresponding computed tomography of thorax (CT) showed massive pneumothorax of left side with infiltrates and cystic spaces in right upper lobe (Figure 2(b)). The patient was advised of intercostal tube drainage but she refused. So she was managed conservatively with oxygen, cough suppressants, and bed rest. Since the patient was smear and culture positive for Mycobacterium tuberculosis, both were repeated and the results were negative. With supportive care, her condition improved and was discharged with the advice to continue antituberculosis drugs and to be on regular follow-up. Chest X-ray and CT at the completion of six months of chemotherapy regimen showed complete resolution of pneumothorax (Figures 3(a) and 3(b)). The patient is under our regular follow-up without any complications.
Spontaneous pneumothorax usually occurs in the young individuals without any associated pulmonary or systemic disease. It is usually produced as a result of rupture of subpleural bleb . Secondary spontaneous pneumothorax is associated with significant lung disease either clinical or radiological, and most commonly it occurs secondary to chronic obstructive pulmonary disease and tuberculosis. Overall, around 1% of patients with active tuberculosis present with secondary spontaneous pneumothorax . It occurs as a result of caseous necrosis with bronchopleural fistula formation or rupture of a cavity into the pleural space .
Tuberculosis may lead to pneumothorax by several mechanisms and the etiology of pneumothorax in this case remains unknown as there was no visible radiological consolidation or cavity. Probably it may have occurred as a result of rupture of tubercular pneumatocele as also previously reported by Duttaroy et al. . As secondary spontaneous pneumothorax occurs in patients with underlying lung disease, their occurrence is less tolerated by patients. The management protocol includes high flow oxygen, needle aspiration in patients with small pneumothorax, and insertion of small bore chest drain . Our case was exceptional in this aspect that even with massive pneumothorax patient got complete resolution. The patients with pneumothorax secondary to tuberculosis usually have a favourable response to chemotherapy and surgical drainage without relapse of pneumothorax . This observation is expected to alleviate apprehension of physicians while encountering such cases in the usual clinical practice.
Conflict of Interests
The authors declare that they have no conflict of interests.
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