ecthyma gangrenosum

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an ulcerative pyoderm usually caused by group A beta-hemolytic streptococcal infection at the site of minor trauma, predominantly involving the shins and feet, and generally healing with variable scar formation.
ecthyma gangreno´sum a condition most often seen in debilitated patients in association with septicemia caused by gram-negative organisms, characterized by lesions that begin as vesicles that rapidly progress to pustulation and gangrenous ulcers with undermined purpuric edges.

der·ma·ti·tis gan·gre·no·sa in·fan·tum

a bullous or pustular eruption, of uncertain origin, followed by necrotic ulcers or extensive gangrene in children under 2 years of age; if untreated, death may result from hematogenous infection, such as liver abscess.

ecthyma gangrenosum

Abbreviation: EG
Ecthyma in patients with Pseudomonas aeruginosa, bacteremia, or sepsis. The disease consists of pustules, localized skin infarcts, or necrotic ulcers surrounded by inflamed, reddened skin. It can be diagnosed by culturing the lesions.
See also: ecthyma
References in periodicals archive ?
Two case reports of neonatal ecthyma gangrenosum with septicemia.
Ecthyma gangrenosum as a manifestation of Pseudomonas sepsis in a previously healthy child.
Ecthyma gangrenosum has been reported in 1 to 6% of patients with P aeruginosa bacteremia, and less often in nonbacteremic patients.
Although ecthyma gangrenosum is most often associated with P aeruginosa, it has also been described in infections with Staphylococcus aureus, Aerornonas hydrophilia, and Aspergillus, Mucor, and Serratia spp.
Specimens from the operating room contained gram-negative rods against a background of coagulative necrosis--findings consistent with a diagnosis of ecthyma gangrenosum.
The lesions found in ecthyma gangrenosum evolve over time.
Perineal ecthyma gangrenosum in infancy and early childhood: septicemic and nonsepticemic forms.
Ecthyma gangrenosum without bacteremia: report of six cases and review of the literature.