title: Malignant syphilis.
authors.affiliation: Servicio de Medicina Interna, Hospital Universitario Marqués de Valdecilla (HUMV), Avda. Valdecilla n° 25, 39008 Santander (Cantabria), Spain. Electronic address: paulaherma@gmail.com.
authors.forename: Paula
authors.initials: P
authors.lastname: Hernández Martínez
authors.affiliation: Servicio de Nefrología, Hospital Universitario Marqués de Valdecilla (HUMV), Spain. Electronic address: jabada@humv.es.
authors.forename: Jairo
authors.initials: J
authors.lastname: Bada Da Silva
authors.affiliation: Servicio de Medicina Interna e Infecciosas, Hospital Universitario Marqués de Valdecilla, Spain. Electronic address: mirevs@humv.es.
authors.forename: Santiago
authors.initials: S
authors.lastname: Echevarría Vierna
mesh_terms: D000900:Anti-Bacterial Agents / Q000008:administration & dosage*; D001727:Bisexuality; D018791:CD4 Lymphocyte Count; D015658:HIV Infections / Q000150:complications*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010401:Penicillin G Benzathine / Q000008:administration & dosage*; D012883:Skin Ulcer / Q000209:etiology*; D013587:Syphilis / Q000175:diagnosis / Q000188:drug therapy*
chemical_list: D000900:Anti-Bacterial Agents; D010401:Penicillin G Benzathine