title: Erythema chronicum migrans.
abstract: A patient with two episodes of an annular erythematous eruption is reported herein. Erythema chronicum migrans was suggested by the appearance and course of the eruption. In the second episode a bullous histology was found, possibly indicating an increasing hypersensitivity response. Since Weil-Felix titers did not change, there was a lack of correlation with rickettsia infection.
mesh_terms: D001132:Arm / Q000473:pathology; D004890:Erythema / Q000175:diagnosis* / Q000473:pathology; D005260:Female; D006801:Humans; D008875:Middle Aged; D012867:Skin / Q000473:pathology