Erythema chronicum migrans

erythema chronicum migrans erythema chron·i·cum mi·grans (krŏn’ĭ-kəm mī’grānz’)
A raised erythematous ring on the skin having hard borders and a central clearing, and radiating from the site of an insect bite; it is the characteristic lesion of Lyme disease.


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    erythema dose n. The minimum amount of x-rays or other form of radiation sufficient to produce redness of the skin after application, regarded as the dose that is safe to give at one time.

  • Erythema induratum

    erythema induratum erythema in·du·ra·tum (ĭn’də-rā’təm, -dyə-) n. A chronic disorder characterized by recurrent hard subcutaneous nodules that frequently form necrotic ulcers, usually on the calves and less frequently on the thighs or arms of women. Also called Bazin’s disease, tuberculosis cutis indurativa.

  • Erythema-infectiosum

    [in-fek-shee-oh-suh m] /ɪnˌfɛk ʃiˈoʊ səm/ noun 1. . erythema infectiosum erythema in·fec·ti·o·sum (ĭn-fěk’shē-ō’səm) n. A mild infectious disease occurring mainly in early childhood, marked by a rosy-red maculopapular rash on the cheeks, often spreading to the trunk and limbs. Fever and arthritis may also be present. Also called fifth disease.

  • Erythema iris

    erythema iris erythema i·ris (ī’rĭs) n. The erythematous concentric lesion characteristic of erythema multiforme. Also called herpes iris.

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