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  • Title: [Diagnostic difficulty in bronchopulmonary tuberculous pseudotumor].
    Author: Chaouch N, Saad S, Zarrouk M, Racil H, Cheikh Rouhou S, Nefzi K, Ridene I, Ayadi A, Chabbou A.
    Journal: Rev Mal Respir; 2011 Jan; 28(1):9-13. PubMed ID: 21277469.
    Abstract:
    Pseudotumour is a rare presentation of bronchopulmonary tuberculosis, occurring in immunocompetent patients, which simulates lung cancer and may thus cause diagnostic difficulty. To assess the frequency and clinical features of tuberculous pseudotumour in immunocompetent patients, we analyzed all cases of pulmonary tuberculosis hospitalized in our department. Tuberculous pseudotumour was defined by the presence of a bronchial or pulmonary lesion suggestive of lung cancer. Over a period of 11 years, 12 cases of tuberculous pseudotumour were collected among 341 cases of pulmonary tuberculosis (3.5%). Mean age was 45 years. All patients were smokers. Symptoms were not specific and were dominated by cough and chest pain. Radiological investigations showed consolidation in five cases and a mass lesion in five cases. Fibreoptic bronchoscopy visualized a tumour in four cases and stenosing bronchial wall infiltration in one case. Mean delay to diagnosis was 47 days. The confirmation of tuberculosis was bacteriologic in only three cases but histological in the others (four bronchial biopsies, two transbronchial biopsies, one pleural biopsy, four surgical specimen). The positive diagnosis of tuberculous pseudotumour is difficult because the clinical and radiological presentation may closely mimic lung cancer, especially as the cases are usually smear negative, leading to a very late diagnosis.
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