Bacillary epithelioid angiomatosis
(BEA). BEA is an unusual infection characterized by multiple,
tender, red, vascular lesions of the skin and subcutaneous tissues
caused by Bartonella henselae, a species closely related to
the organisms that cause “cat scratch” disease. This agent is
sensitive to a variety of systemic antibiotics, including
erythromycin and tetracycline. The vascular proliferative lesions
of BEA are most frequently seen in the skin, but the infection can
also occur subcutaneously and can involve the internal organs and
bones in patients with AIDS. These skin lesions may clinically
resemble those of Kaposi’s sarcoma, although histologically, BEA is
more similar to pyogenic granuloma than to Kaposi’s sarcoma. The
causative organisms of BEA are readily detectable in specially
stained tissue sections with Warthin‐Starry stain. The
skin lesions of BEA can also mimic the skin eruption associated
with verruca peruana because of infection with another
Bartonella sp. Because BEA can be fatal, early diagnosis and
initiation of appropriate antibiotic treatment can be
life‐saving.