eschar

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eschar

 [es´kahr]
1. a slough produced by a thermal burn or a corrosive application, or by gangrene.

es·char

(es'kar),
A thick, coagulated crust or slough which develops following a thermal burn or chemical or physical cauterization of the skin.
[G. eschara, a fireplace, a scab caused by burning]

eschar

(ĕs′kär′)
n.
A dry scab or slough formed on the skin as a result of a burn or by the action of a corrosive or caustic substance.

es·char

(es'kahr)
A thick, coagulated crust or slough that develops following a thermal burn or chemical or physical cauterization of the skin.
[G. eschara, a fireplace, a scab caused by burning]
Enlarge picture
ESCHAR

eschar

(es'kar?) [Gr. eschara, hearth, brazier, burning coal, burn, scab]
Dead matter that is cast off from the surface of the skin, esp. after a burn. The tissue is hard, black or brown, and leathery in texture.
See: illustration; escharotic

eschar

An area of dead, separated tissue (SLOUGH) produced by skin damage by a caustic substance or a burn.

Eschar

A hard crust or scab. In scrub typhus, an eschar forms over the initial sore from the chigger bite.
References in periodicals archive ?
Chlorhexidine ointment was applied to the eschar of the right stifle injury, but no bandage was placed because of the location of the injury.
However, patients with murine typhus experienced myalgia, conjunctivitis, nausea, cough, and vomiting less frequently than patients with scrub typhus, and no lymphadenopathy or eschars were described, which counters previous reports (11).
As per symptom wise incidence rate was also included in present study, highest bacteria was isolated from rash (32.14%) and lowest from eschar and insect bite history (6%).
A painless papule occurs at the bite site prior to other disease symptoms that later ulcerates and transforms into a black crust or eschar in a variable proportion of patients, but is a useful indicator of the disease.
(28) These cases more closely resembled SF rickettsial infections with high fevers, headaches, arthralgias, myalgias, eschars, rashes, and evidence of CNS involvement with photophobia, hearing loss, and meningismus.
Epidemiology of scrub typhus and the eschars patterns in South Korea from 2008 to 2012.
RESULTS: During the study period a total of 52 patients were diagnosed with scrub typhus (Positive for IgM) and had an eschar. The mean (standard deviation) age of the patients was 6.4 [+ or -] 2.7 years and there were 32 females and 20 males.
Of the acutely ill patients who had positive mIFA results, 67% had pathognomonic eschars, confirming the clinical diagnostic value in this sign of systemic infection.
cases 36 21 Geographic location Zimbabwe and Algeria, France, Morocco, South Africa Portugal, South Africa Median age [+ or -] 58 [+ or -] 12 53 [+ or -] 18 SD (IQR), y (31-80) (10-80) Female sex 14 (39) 7 (33) Recent travel 36 17 Clinical signs Fever 35 (97) 21 (100) Rash 24 (67) 20 (95) Enlarged lymph nodes 15 (42) 3 (14) Lymphadenopathy location Cervical 1 (3) 3 (14) Inguinal 14 (39) 0 Axillary 0 0 Eschar 36 (100) 18 (86) Multiple eschars 13 (36) 0 Eschar location Scalp 0 2 (10) Lower limbs 32 (89) 3 (14) Upper limbs 2 (6) 2 (10) Trunk 2 (6) 5 (24) Neck 0 0 Lymphangitis 0 0 Treatment (duration, d) Doxycycline 34 (1 -20) 21 (7-21) Amoxicillin 2 (7) None Pristinamycin None 1 (7) Azithromycin None None Characteristic R.
Patients were considered possibly infected if they had clinical signs (fever, skin eschar, local lymph node enlargement) and if a removed tick was positive for Coxiella-like bacteria according to qPCR but no skin biopsy was sampled or when serologic results were positive.
No rashes, eschars, or lymphadenopathies were noted.
The only sign on physical examination was the presence of 2 eschars on his lower right eyelid, associated with right periorbital edema (Figure) and painful rightsided cervical lymphadenopathies.