What is the diagnostic approach for cat scratch disease (CSD) in immunocompromised patients?

Updated: Feb 16, 2021
  • Author: Robert A Schwartz, MD, MPH; Chief Editor: Michael Stuart Bronze, MD  more...
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Because the clinical manifestations of infection with Bartonella henselae are different in patients who are immunocompromised, an entirely different differential diagnosis is appropriate. Bartonella infection leads to vasculoproliferative lesions, namely bacillary angiomatosis (B henselae, Bartonella quintana) and peliosis (B henselae only). The differential diagnosis includes malignant neoplasms (eg, Kaposi sarcoma, angiosarcoma) and benign reactive conditions (eg, pyogenic granuloma, angiolymphoid hyperplasia with eosinophilia).

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