title: Valentino's syndrome. Perforated peptic ulcer with unusual clinical presentation.
authors.affiliation: Cirugía General, Hospital Regional de Alta Especialidad de Ixtapaluca, Ixtapaluca, Ciudad de México, México. Electronic address: moy1510@hotmail.com.
authors.forename: M M
authors.initials: MM
authors.lastname: Ramírez-Ramírez
authors.affiliation: Cirugía de Colon y Recto, Hospital Ángeles del Pedregal, Ciudad de México, México.
authors.forename: E
authors.initials: E
authors.lastname: Villanueva-Saenz
mesh_terms: D000328:Adult; D001062:Appendectomy; D004386:Duodenum / Q000000981:diagnostic imaging / Q000473:pathology; D006801:Humans; D008297:Male; D010439:Peptic Ulcer Perforation / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery