Volume 31, Number 4—April 2025
Dispatch
Bartonella quintana Endocarditis and Pauci-Immune Glomerulonephritis in Patient without Known Risk Factors, USA, 2024
Figure 2

Figure 2. Histopathology images from a patient with Bartonella quintana endocarditis and pauci-immune glomerulonephritis, California, USA. A) Hematoxylin and eosin stain revealing infiltration of neutrophils and lymphocytes as well as precipitation of fibrin. B) Gram stain showing numerous degenerated bacteria clumped together, mimicking gram-positive cocci. C) Warthin-Starry stain showing numerous rod-shaped bacteria.
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