title: Morphological Changes in a Pyogenic Granuloma of the Esophagus Observed over Three Years.
abstract: A 78-year-old Japanese man underwent routine esophagogastroduodenoscopy, during which a reddish, flat elevated lesion was observed in the middle third of the esophagus. A bright red area of protrusion appeared in the center of the elevated lesion three months later, and the protruded nodule grew to be a blood blister six months after the initial endoscopy examination. The morphology of the lesion changed from a protruded nodule to a mass with two humps that subsequently returned to a single hump during the three-year observation period. A histological diagnosis of pyogenic granuloma was made based on a biopsy performed at six months. This report illustrates a rare case of an esophageal pyogenic granuloma presenting with a unique endoscopic appearance and morphologic changes. Endoscopic ultrasonography images are also presented.
authors.affiliation: Department of Molecular Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Japan.
authors.forename: Masaya
authors.initials: M
authors.lastname: Iwamuro
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Okada
authors.forename: Takehiro
authors.initials: T
authors.lastname: Tanaka
authors.forename: Keisuke
authors.initials: K
authors.lastname: Hori
authors.forename: Masahide
authors.initials: M
authors.lastname: Kita
authors.forename: Seiji
authors.initials: S
authors.lastname: Kawano
authors.forename: Yoshiro
authors.initials: Y
authors.lastname: Kawahara
authors.forename: Kazuhide
authors.initials: K
authors.lastname: Yamamoto
mesh_terms: D000368:Aged; D004621:Embolization, Therapeutic; D016099:Endoscopy, Gastrointestinal; D004947:Esophagus / Q000473:pathology*; D017789:Granuloma, Pyogenic / Q000473:pathology* / Q000628:therapy; D006801:Humans; D008297:Male; D018570:Risk Assessment; D013997:Time Factors; D016896:Treatment Outcome