Black esophagus as an uncommon cause of gastrointestinal bleeding.

Black esophagus (BE) or Acute esophageal necrosis (AEN) is rare clinical entity with an estimated incidence of 0.01-0.2% of patiens undergoing esophagogastroduodenoscopy (EGD).

Evaluation of the implementation of Galician Health Service indications and priority levels for colonoscopy in symptomatic patients: prospective, cross-sectional study.

Background: the Galician Health Service established indications and priority levels (I = fast track, II = preferential, III = normal) for colonoscopy, according to the risk of colorectal cancer and significant colonic lesions detection with access from primary health care. Our aim is to show the results of the implementation.

Methods: we included colonoscopies requested in symptomatic patients from June to October 2012 in a prospective observational cross sectional study.