How does bacillary angiomatosis manifest in immunocompromised patients with catscratch disease (CSD)?

Updated: Feb 16, 2021
  • Author: Robert A Schwartz, MD, MPH; Chief Editor: Michael Stuart Bronze, MD  more...
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Bacillary angiomatosis is a vasculoproliferative disease that mostly involves the skin but can involve other organs. It manifests as numerous brown to violaceous tumors of the skin and subcutaneous tissues. Without antibiotic therapy, the disease progresses with dissemination. The lesions are very similar to verruga peruana, the chronic form of Carrión disease (Oroya fever) from Bartonella bacilliformis infection.

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