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Volume 31, Number 4—April 2025
Dispatch

Bartonella quintana Endocarditis and Pauci-Immune Glomerulonephritis in Patient without Known Risk Factors, USA, 2024

Weibo Yu, Christopher N. Tymchuk, Ran Zhuo, Daniel P. Stefanko, Cody Forsyth, Colette J. Matysiak Match, Sukantha Chandrasekaran, Gregory A. Fishbein, and Shangxin YangComments to Author 
Author affiliation: UCLA David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California, USA

Main Article

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.

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.

Main Article

Page created: February 18, 2025
Page updated: March 31, 2025
Page reviewed: March 31, 2025
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