Tuberculosis nodules are specific granulomas, mostly secondary to tuberculosis infection, on the basis of cellular immunity, consisting of epithelial cells, Langanian giant cells, and lymphocytes and some fibroblasts, with the characteristic presentation of caseous granulomas. Tuberculosis infection is also followed by obvious signs of tuberculosis toxicity and pathological examination is characterized by caseous changes. If there is necrosis in the center, it will show macular-like changes, and tuberculous nodules will also have markedly elevated lesions on the surface of the organ. Because TB occurs mainly in the lung tissue, a CT examination of the chest will show corn-like nodular changes, and the patient will also have significant fever, night sweats, weight loss, etc. If the nodules are confined to fibrotic calcification, they will form significant high-density changes, which are also a sign of healing.