In some immunocompromised patients, bacteremia caused by P. aeruginosa can invade and destroy the walls of subcutaneous blood vessels, resulting in the formation of cutaneous papules that become black and necrotic. This condition is known as:
a. nodular folliculitis
b. ecthyma gangrenosum
c. malignant otitis externa
d. necrolytic migratory erythema
B
On occasion bacteremia caused by P. aeruginosa can progress and invade blood vessel in the subcutaneous tissues. The bacterial enzymes can destroy the walls of the blood vessels causing black, necrotic skin lesions that look like gangrene. This condition is called ecthyma gangreno-sum.
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