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Endobronchial growth: Tumor or tuberculosis.
Journal of Family Medicine and Primary Care 2024 Februrary
Endobronchial tuberculosis (EBTB) is characterized by tuberculosis infection of the tracheobronchial tree. It has variable presentation but tumorous growth-like presentation in bronchus is very rare. The clinical and radiological features are non-specific, which creates a diagnostic dilemma. Bronchoscopy and biopsy of the lesion are mandatory to confirm the diagnosis. In this case series, we are presenting three unique cases of endobronchial growth diagnosed as EBTB after biopsy and evaluation of bronchoalveolar lavage (BAL) with cartridge-based nucleic acid amplification test (CBNAAT) and other ancillary investigations for tuberculosis. Four patients presented to the outpatient department with non-specific symptoms of fever, cough, hoarseness of voice, and hemoptysis. They were evaluated with chest radiograph (CXR), contrast-enhanced computed tomography (CECT) thorax, and bronchoscopy. Bronchoscopy revealed growth in the bronchus in all three cases. A biopsy was taken and BAL was performed. All cases turned out to be EBTB in histopathological examination and BAL CBNAAT. They were treated with anti-tubercular drugs and all responded well to treatment. Endobronchial tuberculosis presenting as tumorous growth in the tracheobronchial tree is rare. There should be a high index of suspicion while dealing with patients with non-specific clinical and radiological features of tuberculosis. EBTB can be misdiagnosed as malignancy in most cases. Therefore, it should be kept as a differential diagnosis while encountering a mass lesion in the trachea or bronchus during bronchoscopy.
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