Reviewer: Elliot Weisenberg, M.D. (see Reviewers page)
Revised: 4 September 2011, last major update September 2011
Copyright: (c) 2003-2011, PathologyOutlines.com, Inc.
● Mainly occurs in immunodeficient patients, especially in AIDS, but also with transplantation and chemotherapy
● Caused by Bartonella henselae, B. quintana
● Pseudoneoplastic vascular proliferation affecting skin, soft tissue, lungs, bronchi, and other sites; known as peliosis in the liver and spleen
● See also Lymph nodes-not lymphoma chapter
● Polypoid endobroncial nodules in HIV+ man (Chest 1992;102:972)
● Erythromycin, other macrolides or doxycycline are very effective
● Vascular proliferation with neutrophils and mononuclear cells with smudgy basophilic material representing bacteria
● Prominent endothelial cells with nuclear atypia and mitotic figures
● Warthin-Starry, GMS, gram stain (organisms are gram negative)
End of Lung-nontumor > Infections > Bacillary angiomatosis
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