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8 Cards in this Set
- Front
- Back
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What is the tissue reaction to Tuberculosis?
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Noncaseating and Caseating
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Describe NonCaseating Tuberculosis?
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(Granuloma Prototype):A focus of epitheloid cells, rimmed by fibroblasts, lymphocytes, histiocytes, and giant cells
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Describe Caseating Tuberculosis?
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Central amorphous granular debris, loss of all cellular detail, acid-fast bacilli
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What is the tissue reaction to leprosy?
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Acid-fast bacilli in macrophages; NON-caseating granulomas
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What is the tissue reaction to syphilis?
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(Gumma): microscopic to grossly visible lesion, enclosing wall of histeocytes, plasma cell infiltrate, central cells are necrotic without the loss of cellular outline.
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What is the tissue reaction to Cat scratch?
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Rounded and stellate granuloma containing central granular debris and recognizable neutrophils (PUS), giant cells uncommon
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What is the tissue reaction to Sarcoidosis?
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NON-caseating granulomas with abundant activated macrophages
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What is the tissue reaction to Chrohn's disease?
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Occasional NON-caseating granulomas in wall of intestine, with dense chronic inflammatory infiltrate
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