Is bacillary angiomatosis benign?

The disease is caused by a bacterium called Rochalimaea henselae, which was reclassified as Bartonella henselae, named for Diane Hensel, a microbiologist. Bacillary angiomatosis has also been called cat scratch disease, cat scratch fever, regional lymphadenitis, and benign lymphoreticulosis.

What is bacillary angiomatosis?

Bacillary angiomatosis is a vascular, proliferative form of Bartonella infection that occurs primarily in immunocompromised persons. While the disorder is treatable and curable, it may be life threatening if untreated.

Does bacillary angiomatosis blanch?

Clinically the bacillary angiomatosis (BA) skin lesions vary from a single lesion to thousands. The cutaneous lesion appears as a bright-red round papule, subcutaneous nodule, or as a cellulitic plaque. When the lesion is biopsied it tends to blanch-out, bleed, and cause pain.

How can you tell the difference between Kaposi sarcoma and bacillary angiomatosis?

Bacillary angiomatosis lesions typically possess capillary proliferation and neutrophilic inflammation. In contrast, Kaposi sarcoma lesions display slitlike vascular spaces containing lymphoplasmacytic infiltrates. A skin biopsy is required to establish diagnosis.

What causes bacillary angiomatosis?

Bacillary angiomatosis is caused by two species of Bartonella genus namely Bartonella henselae and Bartonella quintana. The clinical spectrum of bacillary angiomatosis caused by these species differs. While both species cause cutaneous lesions, subcutaneous and osseous lesions are more frequent with B.

How do you get bacillary angiomatosis?

What is the cause of bacillary angiomatosis? Bacillary angiomatosis is caused by Bartonella (Rochalimaea) quintana and Bartonella (Rochalimaea) henselae, gram-negative intracellular bacteria. Cats are the main reservoir for B henselae, and humans for B quintana.

What is trench fever?

Trench fever is a louse-borne disease caused by the gram-negative bacterium Bartonella quintana and observed originally in military populations during World Wars I and II. Symptoms are an acute, recurring febrile illness, occasionally with a rash.

What can be mistaken for Kaposi sarcoma?

Other conditions that look similar to Kaposi sarcoma skin cancer are: Hematoma, which a large clot of blood that accumulates outside of a blood vessel in tissue. Dermatofibroma, which is a harmless skin growth. Purpura, which are spots caused by bleeding from the small blood vessels under the skin.

Is bacillary angiomatosis a tumor?

Bacillary angiomatosis (epithelioid angiomatosis) is an uncommon disease characterized by neovascular proliferation in the skin or the internal organs (peliosis) due to an infection with Bartonella henselae or Bartonella quintana. It commonly occurs in immunocompromised as well as immunocompetent patients.

What does bacillary mean?

1 : shaped like a rod also : consisting of small rods. 2 : of, relating to, or caused by bacilli.

Does trench fever still exist?

Trench fever is found all around the world, usually in populations living close together and/or with very unhygienic conditions.

How do you prevent trench fever?

Trench fever, Bartonella quintana Avoid exposure to human body lice. Body lice are typically associated with crowded living conditions and limited access to bathing and clean clothes. Do not share clothing, beds, bedding, and towels used by a person who might have body lice.