title: Isolated proximal black esophagus: etiology and the role of tissue biopsy.
authors.forename: Grigoriy E
authors.initials: GE
authors.lastname: Gurvits
authors.forename: James G
authors.initials: JG
authors.lastname: Robilotti
mesh_terms: D000208:Acute Disease; D001706:Biopsy; D004941:Esophagitis / Q000473:pathology*; D004947:Esophagus / Q000473:pathology*; D006801:Humans; D009203:Myocardial Infarction / Q000150:complications; D009336:Necrosis