title: [Images of gastrointestinal endoscopy. Duodenal Adenocarcinoma (fourth segment)].
authors.affiliation: Servicio de Endoscopía, Hospital de Especialidades, Centro Médicp Nacional Siglo XXI, Instituto Mexicano del Seguro Social.
authors.forename: Alejandro
authors.initials: A
authors.lastname: Membrillo-Romero
authors.forename: Oscar
authors.initials: O
authors.lastname: Hernández-Mondragón
authors.forename: Juan Manuel
authors.initials: JM
authors.lastname: Blancas-Valencia
mesh_terms: D000230:Adenocarcinoma / Q000175:diagnosis*; D004379:Duodenal Neoplasms / Q000175:diagnosis*; D016099:Endoscopy, Gastrointestinal; D005260:Female; D006801:Humans; D008875:Middle Aged