title: Rare cause of severe anemia due to pyogenic granuloma in the jejunum.
abstract: BACKGROUND
  Pyogenic granuloma (PG) is a polypoid lobular capillary hemangioma rarely observed in the gastrointestinal tract. Only a few cases in the small bowel have been described in the literature.
  
  
  METHODS
  A 58-year-old man had been suffering from general fatigue and severe anemia. Esophagogastroduodenoscopy and colonoscopy did not reveal any significant bleeding. Abdominal computer tomography revealed a hypervascular tumor in the small intestine. Oral double-balloon endoscopy (DBE) detected a polypoid lesion (2 cm in diameter) in the jejunum. We performed laparoscopic-assisted partial resection of the jejunum. The histological features of the tumor were consistent with PG. The patient's anemia gradually improved without the need for oral iron after surgery.
  
  
  CONCLUSIONS
  In this case report, we present a case of pyogenic granuloma in in the jejunum that was detected by DBE.
authors.affiliation: Department of Surgery, Matsumoto City Hospital, 4417-180 Hata, Matsumoto, Nagano, 3901401, Japan. 96084sm@jichi.ac.jp.
authors.forename: Shun-Ichi
authors.initials: S
authors.lastname: Misawa
authors.affiliation: Department of Surgery, Matsumoto City Hospital, 4417-180 Hata, Matsumoto, Nagano, 3901401, Japan. m05041hs@jichi.ac.jp.
authors.forename: Hiroto
authors.initials: H
authors.lastname: Sakamoto
authors.affiliation: Department of Surgery, Matsumoto City Hospital, 4417-180 Hata, Matsumoto, Nagano, 3901401, Japan. 159735@hp-hata.com.
authors.forename: Akira
authors.initials: A
authors.lastname: Kurogochi
authors.affiliation: Department of Surgery, Matsumoto City Hospital, 4417-180 Hata, Matsumoto, Nagano, 3901401, Japan. yasukiri@jichi.ac.jp.
authors.forename: Yasushi
authors.initials: Y
authors.lastname: Kirii
authors.affiliation: Department of Gastroenterology, Matsumoto City Hospital, 4417-180 Hata, Matsumoto, Nagano, 3901401, Japan. 139882@hp-hata.com.
authors.forename: Shinichiro
authors.initials: S
authors.lastname: Nakamura
authors.affiliation: Department of Gastroenterology, Matsumoto City Hospital, 4417-180 Hata, Matsumoto, Nagano, 3901401, Japan. 96014to@jichi.ac.jp.
authors.forename: Tomoko
authors.initials: T
authors.lastname: Misawa
authors.affiliation: Department of Gastroenterology, Matsumoto City Hospital, 4417-180 Hata, Matsumoto, Nagano, 3901401, Japan. 119865@hp-hata.com.
authors.forename: Suguru
authors.initials: S
authors.lastname: Yoneda
authors.affiliation: Department of Gastroenterology, Matsumoto City Hospital, 4417-180 Hata, Matsumoto, Nagano, 3901401, Japan. 159905@hp-hata.com.
authors.forename: Mari
authors.initials: M
authors.lastname: Hirano
authors.affiliation: Department of Gastroenterology, Matsumoto City Hospital, 4417-180 Hata, Matsumoto, Nagano, 3901401, Japan. 0809@hp-hata.com.
authors.forename: Osamu
authors.initials: O
authors.lastname: Owa
authors.affiliation: Department of Surgery, Matsumoto City Hospital, 4417-180 Hata, Matsumoto, Nagano, 3901401, Japan. 0344@hp-hata.com.
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Takagi
authors.affiliation: Department of Biomedical Laboratory Sciences, Shinshu University, School of Medicine, 3-1-1 Asahi, Matsumoto, 3908621, Nagano, Japan. hohta@shinshu-u.ac.jp.
authors.forename: Hiroyoshi
authors.initials: H
authors.lastname: Ota
mesh_terms: D000740:Anemia / Q000209:etiology*; D003113:Colonoscopy / Q000379:methods; D058582:Double-Balloon Enteroscopy; D016145:Endoscopy, Digestive System; D017789:Granuloma, Pyogenic / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D006801:Humans; D007414:Intestinal Neoplasms / Q000150:complications; D007579:Jejunal Diseases / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D008297:Male; D008875:Middle Aged; D009383:Neoplasms, Vascular Tissue / Q000150:complications