Erythema migrans looks like erythema marginatum except for its central portion which has a bull’s eye presentation. Erythema marginatum spreads throughout the body while erythema migrans expands on a localized part. Erythema marginatum is seen in patients with rheumatic fever. Erythema migrans is comm...
Erythema chronicum migrans (ECM) is the distinctive cutaneous lesion of the multisystem tick-borne spirochetosis, Lyme disease. Its clinical and histologic pictures are variable. Of the 51 patients with ECM of Lyme disease, 38 patients (75%) had single lesions, 13 patients (25%) had multiple...