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Tubercle lesions are primarily caused by infection with Mycobacterium tuberculosis, the bacterium responsible for tuberculosis (TB). When the bacteria invade the body, the immune system responds by forming granulomas, which are small clusters of immune cells that encapsulate the bacteria to prevent their spread. These granulomas can develop into tubercle lesions in the lungs or other affected organs. Additionally, factors such as a weakened immune system and genetic predisposition can influence the formation and severity of these lesions.

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6d ago

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