Backllary angiomatosis

Question 1

Etio

Answer 1

.B.henselae,B.quintana

Bothcausecutaneousangiomas.B.quintana causes subcutaneous nodules and lytic bone lesion

Question 2

Risk factor

Answer 2

B.henselae:contact with cats and/or cat fleas(C. felis).

B.quintana:low income,home- lessness, body louse (P. humanis corporis) infestation

Question 3

manif

Answer 3

Papules or nodules resembling angiomas (bright red, violaceous, or skin colored)
up to 2 to 3 cm in diameter; usually situated in dermis with thinning or erosion of overlying epidermis. Larger lesions may ulcerate. Subcutaneous nodules, 1 to 2 cm in diameter, resembling cysts. Uncommonly, abscess formation.Papules/nodulesrange rom solitary lesions to > 100. Firm, nonblanching.

Question 4

Distribution

Answer 4

Anysite,butpalmsandsolesare usually spared. Occasionally, lesions occur at thesiteo acatscratch.Asolitarylesionmay present as dactylitis

Question 5

mucous membrane

Answer 5

Angioma-likelesionso lips and oral mucosa. Laryngeal involvement with obstruction.

Question 6

Diagnostic

Answer 6

con rmed by demonstration o Bartonella bacilli on the Warthin-Starry silverstain lesionalbiopsyspecimen,culture, or antibody studies

Question 7

Treatment

Answer 7

erythromycin is treatment of choice;alternatively, doxycycline, lesions resolve within 1 to 2 weeks