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Doughnut Granuloma |
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Doughnut Granuloma A granuloma composed of epithelioid histiocytes, neutrophils, mononuclear or ‘round’ inflammatory cells, giant cells, and a central cleared lipid vacuole; while a characteristic finding in Q fever—Coxiella burnetii—the doughnut granuloma occurs in less than half of the cases, located in the bone marrow and liver; doughnut granulomas are also seen in human monocytic ehrlichiosis due to Ehrlichia chaffeensis, Hodgkin’s disease, infectious mononucleosis, typhoid and CMV in immunocompromised patients Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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