title: Erythema annulare centrifugum associated with ascariasis.
abstract: Erythema annulare centrifugum (EAC) is a figurate erythema that has been associated with man diverse entities. A case of EAC was related to infestation by the nematode, Ascaris lumbricoides. A careful examination of the patient did not define an immunologic basis for EAC. Results of lymphocyte stimulation tests of the patient showed an immune response to A lumbricoides extracts but not to A suum extracts. This finding is of practical importance, since most laboratoires use A suum extracts in routine skin and serologic tests for human ascariasis.
mesh_terms: D000871:Anthelmintics / Q000627:therapeutic use; D001196:Ascariasis / Q000150:complications* / Q000175:diagnosis / Q000188:drug therapy; D002648:Child; D004892:Erythema Multiforme / Q000209:etiology* / Q000473:pathology; D005260:Female; D006801:Humans; D007411:Intestinal Diseases, Parasitic / Q000150:complications; D010879:Piperazines / Q000627:therapeutic use; D012867:Skin / Q000473:pathology; D013827:Thiabendazole / Q000627:therapeutic use
chemical_list: D000871:Anthelmintics; D010879:Piperazines; C006589:piperazine citrate; D013827:Thiabendazole