ecthyma


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ecthyma

 [ek-thi´mah]
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.

ec·thy·ma

(ek-thī'mă),
A pyogenic infection of the skin initiated by β-hemolytic streptococci and characterized by adherent crusts beneath which ulceration occurs; the ulcers may be single or multiple, and heal with scar formation.
[G. a pustule]

ecthyma

/ec·thy·ma/ (ek-thi´mah) a shallowly ulcerative form of impetigo, chiefly on the shins or forearms.

ecthyma

[ek′thimə]
Etymology: Gk, ek, out, thyein, to rush
an ulcerative pyoderma characterized by large pustules, crusts, and ulcerations surrounded by erythema. It is caused by a streptococcal infection after a minor trauma. The skin of the legs is most frequently affected. Treatment includes vigorous cleansing, application of compresses of cool Burow's solution to soften and remove crusts, and systemic administration of antibiotics. Compare folliculitis, impetigo.
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Ecthyma

ecthyma

Dermatology A chronic subcutaneous infection by β-hemolytic streptococci that develops usually on the legs, in a background of a pruritic lesion–eg, insect bite, scabies, pediculosis; skin becomes crusted, weeping, and later scarred Management Warm compresses, antibacterial soap, H2O2, systemic penicillin. See Impetigo.

ec·thy·ma

(ek-thī'mă)
A pyogenic infection of the skin initiated by β-hemolytic streptococci and characterized by adherent crusts beneath which ulceration occurs; the ulcers heal with scar formation.
[G. a pustule]

ecthyma

A pus-forming, ulcerating and crusting inflammatory skin disease, similar to IMPETIGO, often affecting the forearms and legs of malnourished people.

ecthyma

a shallowly eruptive form of impetigo.

contagious ecthyma
a specific dermatitis of sheep caused by a poxvirus in the genus Parapoxvirus. The virus is strongly antigenic and an attack of the disease or vaccination provides long-lasting immunity. If the flock has previously been exposed the disease is restricted in occurrence to lambs and young sheep. The characteristic lesions occur mostly on the lips and the skin around the mouth, but have appeared wherever skin contact has been made with a source of infective virus, e.g. ear tagging, tail docking. Lesions are first papules, then crusts, and finally discrete thick tenacious scabs over vigorous granulation tissue. Very young lambs develop an extensive form of the disease involving even the alimentary tract. Occasional older sheep also have extensive lesions on other skin areas such as the coronets, and at the other mucocutaneous junctions. The disease is transmissible to humans. Called also orf, scabby mouth, contagious pustular dermatitis.
References in periodicals archive ?
Diagnosis of ecthyma gangrenosum can be made by aspirate or biopsy an culture, she noted.
Present study deals with outbreaks of contagious ecthyma and its management.
The culture was sterile in both cases of ecthyma (Table 5).
The differential diagnosis for herpes zoster infections includes herpes simplex virus (HSV), contact dermatitis, lichen striatus, and ecthyma.
Ecthyma gangrenosum (EG) is a well described skin lesion, mostly seen in immuno-compromised patients.
Many other bacteria are pathogenic, such as Streptococcus that colonizes the heart valves (6), Aeromonas that produces cytotoxic-enterotoxin causes tissue damage (7), Acinetobacter that causes urinary tract infections, pneumonia, endocarditis, wound infections, septicemia and meningitis (8) as well as Pseudomonas that causes bronchopneumonia, ecthyma gangrenosum, urinary tract catheterization, necrotising enterocolitis, hemorrhage, necrosis of the skin (9).
Brown recluse spider bites, ecthyma, accidental vaccine, ulceroglandular tularemia, and necrotic herpes simplex should be considered in the differential diagnosis of CA.
Ecthyma gangrenosum is a skin lesion associated with Pseudomonas aeruginosa.
Ecthyma contagiosum (orf) - Report of a human case from the United Arab Emirates and review of the literature.
Ecthyma gangrenosum (EG) is a relatively uncommon condition.