Ecthyma gangrenosum
Last Updated: 2020-08-07
ICD11: 1B73.2
Last Updated: 2020-08-07
Author(s): Anzengruber F., Navarini A.
ICD11: 1B73.2
Ecthyma terebrans.
Ulcers, which are caused by gram-negative bacteria.
Caused by gram-negative bacteria, especially Pseudomonas aeruginosa. Predisposing factors include repeated application of bactericidal agents effective against the Gram‐positive flora, or prolonged maceration favouring the establishment of Pseudomonas even in previously healthy adults.
Single or multiple sharply defined, punched out ulcers.
Mostly the legs are affected, but a manifestation is possible anywhere.
Pseudomonas infection of the toe webs is known as tropical immersion foot, characterized by sharply demarcated areas of maceration and tender erosions.
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