Bacillary Angiomatosis

They may resemble kaposi sarcoma or pyogenic granulomas.

Bacillary angiomatosis. Typically there are ulcerated papules or nodules composed of lobules of highly vascularized oedematous connective tissue figure 1. The surface of the plaque may be uneven and hyperkeratotic in the center. Bacillary angiomatosis is the second most common cause of angiomatous skin lesions in persons infected with the human immunodeficiency virus hiv. These nodules have also been observed postmortem in the larynx gastrointestinal tract peritoneum and diaphragm.

Bacillary angiomatosis subcutaneous nodules. Histology of bacillary angiomatosis histologically the lesions of bacillary angiomatosis closely resemble pyogenic granuloma. Bacillary angiomatosis is a systemic illness characterised by lesions similar to those of kaposi sarcoma in the skin mucosal surfaces liver spleen and other organs. Bacillary angiomatosis ba is a form of angiomatosis associated with bacteria of the genus bartonella.

Bacillary angiomatosis is a systemic disease diagnosed in immunocompromised patients. It is caused by bacterial infection with bartonella quintana and bartonella henselae cause of catscratch disease and also known as rochalimaea henselae. Bacillary angiomatosis almost always occurs in immunocompromised people and is characterized by protuberant reddish berrylike lesions on the skin often surrounded by a collar of scale. The hyperpigmented plaques are more common in black patients and present as indurated oval plaques with indistinct borders figure 4 figure 5.

Bacillary angiomatosis is caused by rickettsia like organism bartonella henselae. They are most often found on the extremities.