A Case of Endobronchial Tuberculosis Mimicking Lung Cancer Developing on the Background of Anthracosis

OpenAlex İngilizce

Anthracite pigment accumulation in the bronchial mucosa can lead to bronchial hypertrophy and narrowing in the future.A patient pre-diagnosed with community-acquired pneumonia underwent fiberoptic bronchoscopy (FOB) and was subsequently treated with antibiotics, however no clinical or radiological response could be obtained.Fiberoptic bronchoscopy (FOB) revealed the mucosa of the lower basal segments of the right lung to be covered with black pigment, while the bronchi segments were found to be narrowed with mucosal infiltration.Based on these findings, a biopsy was performed with pre-diagnosis of malignancy developing on the basis of anthracosis.The pathological examination revealed granulomatous inflammation with caseified necrosis and acidresistant bacilli in the bronchoalveolar lavage.The patient was diagnosed with tuberculosis on the basis of anthracosis and was thus started on quadruple anti-tuberculosis treatment, and clinical, microbiological and radiological improvement was observed in the 4th month of follow-up.