title: Blood loss anemia due to adenocarcinoma of the jejunum: case report and review of the literature.
abstract: BACKGROUND
  Small bowel tumors are rare, accounting for only 3-6% of gastrointestinal neoplasms, 1-2% of these being malignant. They must be considered whenever a patient presents with gastrointestinal bleeding, with normal upper gastrointestinal endoscopy and colonoscopy.
  
  
  METHODS
  We report a case of jejunal adenocarcinoma presenting as a blood loss anemia in a 65 year-old male, doing a brief review on the subject.
  
  
  CONCLUSIONS
  Our case intends to highlight the fact that small bowel tumours are rare and frequently present to the Internist as non-specific clinical symptoms.
authors.affiliation: Hospital de Curry Cabral - Department of Internal Medicine - Rua da Beneficência nº 8 1069-166 Lisboa, Portugal. jffcoelho@gmail.com
authors.forename: João
authors.initials: J
authors.lastname: Figueira-Coelho
authors.forename: Sofia
authors.initials: S
authors.lastname: Lourenço
authors.forename: Michele
authors.initials: M
authors.lastname: Costa
authors.forename: Paula
authors.initials: P
authors.lastname: Mendonça
authors.forename: António
authors.initials: A
authors.lastname: Murinello
authors.forename: Jorge
authors.initials: J
authors.lastname: Neta