Tuberculosis is a chronic inflammation caused by Mycobacterium tuberculosis (tubercle bacillus, Koch bacillus) - human type or bovine type. The most affected organ by tuberculosis is the lung. Microscopically, the characteristic lesion in tuberculosis is the tuberculous granuloma.
Pulmonary tuberculosis. Tuberculous granuloma is localized in the pulmonary interstitium, compressing the surrounding alveoli and destroing the parenchyma. (Hematoxylin-eosin, ob. x4) (For detailed histological description of granuloma, see tuberculous granuloma.)
Pulmonary tuberculosis (detail 1)
Tuberculous granuloma in the pulmonary interstitium. (Hematoxylin-eosin, ob. X20)
Pulmonary tuberculosis (detail 2)
Tuberculous granuloma in the pulmonary interstitium. (Hematoxylin-eosin, ob. x20)
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