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Photomicrograph of a lymph node biopsy from a patient with cat-scratch disease showing abundant extracellular, clumped coccobacilli of B. henselae in necrotic foci. (Immunoalkaline phosphatase with monoclonal antibody against B. henselae, naphthol fast red substrate and hematoxylin counterstain; ×200.)
Courtesy of Dr. Suimin Qiu, University of Texas Medical Branch.
