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 ?
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.
2,4) A blood PCR detects R africae, (13) and if a rash or eschar is present, a biopsy can confirm the diagnosis.
A history of tick bites, bite site eschars, fever, maculopapular rashes, and painful regional lymphadenopathy will help to establish the correct diagnosis, especially in the absence of adequate molecular diagnostic laboratory services.
29) In patients with more severe bites, eschar may take months to develop and the skin may take several months more to heal.
African tick-bite fever: a new entity in the differential diagnosis of multiple eschars in travelers.
Eschar is the site of inoculation, where initial multiplication occurs before the dissemination and the size varies from 5-20mm.
During 2011-2014, we identified patients in hospitals throughout France, who had eschars after tick bite.
The more frequent clinical findings reported are nonspecific and include fever, asthenia, headache, maculopapular rash, and inoculation eschar.
Because of the location of the eschars, it was not possible to obtain biopsy specimens from them.
Physical examination showed a single inoculation eschar surrounded by an erythematous halo on the scalps of all 3 patients; 1 patient later had alopecia develop at the tick bite site (Table; Figure 1).
parkeri infection among persons seeking care with tick bite eschars or who have received a clinical diagnosis of rickettsial illness.