NCIt definition : A condition that is caused by infection with Bartonella, and which is characterized
by vascular proliferation, usually in immunocompromised individuals.;
Alternative definition : NICHD: An infection that is caused by Bartonella henselae or Bartonella quintana,
which occurs primarily in immunocompromised persons; it is characterized by vascular
lesions in the skin, subcutaneous tissue, bone, or other organs.;