Home   Chapter Home   Jobs   Conferences   Fellowships   Books

Advertisement

Skin - Nonmelanocytic tumors

Vascular tumors

Bacillary angiomatosis

Reviewer: Christopher Hale, M.D. (see Reviewers page)
Revised: 16 July 2012, last major update July 2012
Copyright: (c) 2001-2012, PathologyOutlines.com, Inc.

General
=========================================================================

● Due to infection by Bartonella henselae
● May involve soft tissue, lymph nodes, internal organs
● May coexist with Kaposi’s sarcoma
● Reactive but mimics a neoplasm, and commonly presents as multiple cutaneous neoplasms in HIV patients

Treatment
=========================================================================

● Antibiotics

Case reports
=========================================================================

● 36 year old man with AIDS, skin lesions, fever and weight loss (Can J Infect Dis Med Microbiol 2005;16:249)

Clinical images
=========================================================================

Exophytic lesion on neck


Small, cherry angiomata-like lesions and nodules on trunk

Gross description
=========================================================================

● Red papules/nodules

Micro description
=========================================================================

● Lobules of capillaries with epithelioid endothelial cells
● Also fragmented neutrophils, granular purple extracellular bacteria

Micro images
=========================================================================

Various images

Electron microscopy description
=========================================================================

● Bacteria with trilaminar cell walls (Can J Infect Dis Med Microbiol 2005;16:249)

Positive stains
=========================================================================

● Silver stains (bacteria)

Differential diagnosis
=========================================================================

● Verruga peruana
● Kaposi sarcoma

End of Skin - Nonmelanocytic tumors > Vascular tumors > Bacillary angiomatosis

This information is intended for physicians and related personnel, who understand that medical information is often imperfect, and must be interpreted in the context of a patient's clinical data using reasonable medical judgment. This website should not be used as a substitute for the advice of a licensed physician.

All information on this website is protected by copyright of PathologyOutlines.com, Inc. Information from third parties may also be protected by copyright. Please contact us at copyrightPathOut@gmail.com with any questions (click here for other contact information).