eschar

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eschar

[′es·kər]
(geology)
(medicine)
A dry crust or slough, especially one formed after a thermal or chemical burn.
References in periodicals archive ?
DNA was extracted from 200 [micro]L of solution of eschar swab or skin biopsy samples by using the QIAamp DNA Mini Kit (QIAGEN, Hilden, Germany) according to the manufacturer's instructions, with a final elution volume of 100 [micro]L.
In April, his wife (67 years of age) (patient 2) became febrile, had popliteal lymphadenopathies associated with lymphangitis, and had an eschar on the leg from which a swab specimen was obtained.
29) In patients with more severe bites, eschar may take months to develop and the skin may take several months more to heal.
The inoculation eschar at the tick bite site is a hallmark of many tickborne SPG rickettsioses.
Molecular detection of rickettsial DNA on eschar biopsies was performed by PCR, as described (13).
12) has shown that rickettsial infection could be diagnosed from noninvasively collected cutaneous lesion swab specimens from skin eschars from guinea pigs.
All 6 case-patients had a single inoculation eschar develop: 2 on the neck, 2 on a lower limb (Figure), 1 on the scalp, and 1 on an upper limb.
Eschars appeared by day 3 postinfection and reached their maximum size by day 7.
Eschars have occurred frequently in the limited number of R.
antigens were detected in formalin-fixed, paraffin-embedded sections of eschar and papule biopsy specimens that showed histopathologic features (Figure 2, panel D) compatible with those described for R.
henselae in patients with scalp eschars and neck lymphadenopathy after tick bites (5).
Most eschars were on the legs, but some patients had an eschar on the back, the abdomen, the arm, or the face.