title: Primary syphilitic chancre on the upper arm in an HIV-1-infected patient.
abstract: A 32-year-old HIV-infected man presented with an ulcerating skin lesion with indurated borders on the upper right arm. Both dark-field microscopy and syphilis serology confirmed the diagnosis of primary syphilis. Extragenital syphilitic chancres are uncommon but nevertheless have to be kept in mind as they often delay diagnosis.
authors.affiliation: Department of Dermatology, Division of Immunology, Allergy and Infectious Diseases (DIAID), Medical University of Vienna, Vienna General Hospital, Waehringer Guertel 18-20, A-1090 Vienna, Austria. maximilian.aichelburg@meduniwien.ac.at
authors.forename: M C
authors.initials: MC
authors.lastname: Aichelburg
authors.forename: A
authors.initials: A
authors.lastname: Rieger
mesh_terms: D000328:Adult; D001132:Arm; D002601:Chancre / Q000150:complications / Q000473:pathology*; D060085:Coinfection; D015658:HIV Infections / Q000150:complications* / Q000382:microbiology; D015497:HIV-1; D006801:Humans; D008297:Male; D013587:Syphilis / Q000150:complications / Q000473:pathology*