title: Upper GI abscess formation and intramural hemorrhage: sequelae from possible gastric perforation.
abstract: The definition of an abscess is, "a localized collection of pus caused by suppuration in a tissue, organ or confined space." Pyogenic bacteria that invade the tissue are responsible for this inflammatory response. The following case study demonstrates such a response via an unusual presentation of upper gastrointestinal bleeding.
authors.forename: A
authors.initials: A
authors.lastname: Nastasi
mesh_terms: D000038:Abscess / Q000175:diagnosis* / Q000209:etiology / Q000451:nursing; D000368:Aged; D016099:Endoscopy, Gastrointestinal; D005767:Gastrointestinal Diseases / Q000175:diagnosis*; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis* / Q000209:etiology / Q000451:nursing; D006801:Humans; D008297:Male; D011552:Pseudomonas Infections / Q000175:diagnosis* / Q000209:etiology / Q000451:nursing; D011551:Pseudomonas fluorescens; D013270:Stomach / Q000293:injuries*; D014950:Wounds, Penetrating / Q000150:complications*