Subscribe to RSS
DOI: 10.1055/s-0030-1256603
© Georg Thieme Verlag KG Stuttgart · New York
Inverted Meckel’s diverticulum mimicking an ulcerated pedunculated polyp: detection by single-balloon enteroscopy
T.-Y. HuangMD, PhD
Division of Gastroenterology
Department of Internal
Medicine
Tri-Service General Hospital
325, Section 2, Cheng-Kung Road
Taipei
114
Taiwan
Republic of China
Fax: +886-2-87927139
Email: teinyu.chun@msa.hinet.net
Publication History
Publication Date:
11 August 2011 (online)
A 19-year-old woman was referred to our hospital because of recurrent obscure gastrointestinal bleeding. Abdominal computed tomography revealed one heterogeneous lesion with soft tissue and accumulation of fluid over the distal ileum ([Fig. 1]).
Physical examinations showed mild tenderness in the right lower quadrant region of abdomen, and laboratory data revealed microcytic anemia. Single-balloon enteroscopy with an anal approach showed one ulcerated pedunculated polyp (about 2 cm in size) with a long stalk located at around the distal ileum ([Fig. 2 a, b]; [Video 1]).
Quality:
Polypectomy was performed during enteroscopy ([Fig. 2 c]). One diverticular-like orifice occurred after polypectomy, and one small hole on the tip of this diverticulum was visualized. The woman received emergent laparotomy because of iatrogenic gut perforation. The operation disclosed one diverticulum with iatrogenic perforation about 60 cm from the ileocecal valve ([Fig. 3 a]).
Segmental resection of the ileum was performed. The pathologic examination of specimens from laparotomy and polypectomy confirmed the diagnosis of Meckel’s diverticulum with ectopic pancreatic tissue ([Fig. 3 b]) and gastric tissue ([Fig. 3 c]) with ulceration.
Meckel’s diverticulum is the most common congenital anomaly of the gastrointestinal tract (1 % – 3 % of the population); it is generally asymptomatic. Bleeding is the most common complication, especially in children. However, accurate diagnosis remains difficult. In addition to conventional Technetium-99 m pertechnetate scintigraphy, capsule or balloon-assisted enteroscopy is another diagnostic tool to directly observe the diverticulum [1] [2] [3]. Inverted Meckel’s diverticulum is extremely rare, especially that containing both pancreatic and gastric tissues [4] [5]. In the present case, the inverted Meckel’s diverticulum with ectopic tissues was clearly viewed by single-balloon enteroscopy, but this lesion mimicked an ulcerated pedunculated polyp. Polypectomy caused subsequent gut perforation. Therefore, inverted Meckel’s diverticulum should be considered and treated carefully in a patient with an elongated pedunculated polyp in the distal ileum.
Endoscopy_UCTN_Code_CPL_1AI_2AD
Competing interests: None
#References
- 1 Moon J H, Park C H, Kim J H et al. Meckel’s diverticulum bleeding detected by capsule endoscopy. Gastrointest Endosc. 2006; 63 702-703
- 2 Honda K, Mizutani T, Higuchi N et al. A Meckel’s diverticulum with an ileal ulcer detected with double-balloon enteroscopy. Endoscopy. 2007; 39 160-0
- 3 Shinozaki S, Yamamoto H, Ohnishi H et al. Endoscopic observation of Meckel’s diverticulum by double balloon endoscopy: report of five cases. J Gastroenterol Hepatol. 2008; 23 308-311
- 4 Yan S L, Chou D A, Wu C S. Inverted Meckel’s diverticulum: a rare cause of obscure GI bleeding. Gastrointest Endosc. 2011; 73 611-612
- 5 Kopacova M, Vykouril L, Vacek Z et al. Inverted Meckel’s diverticulum with ectopic pancreatic tissue as a source of severe gastrointestinal bleeding. J Gastrointest Surg. 2010; 14 578-581
T.-Y. HuangMD, PhD
Division of Gastroenterology
Department of Internal
Medicine
Tri-Service General Hospital
325, Section 2, Cheng-Kung Road
Taipei
114
Taiwan
Republic of China
Fax: +886-2-87927139
Email: teinyu.chun@msa.hinet.net
References
- 1 Moon J H, Park C H, Kim J H et al. Meckel’s diverticulum bleeding detected by capsule endoscopy. Gastrointest Endosc. 2006; 63 702-703
- 2 Honda K, Mizutani T, Higuchi N et al. A Meckel’s diverticulum with an ileal ulcer detected with double-balloon enteroscopy. Endoscopy. 2007; 39 160-0
- 3 Shinozaki S, Yamamoto H, Ohnishi H et al. Endoscopic observation of Meckel’s diverticulum by double balloon endoscopy: report of five cases. J Gastroenterol Hepatol. 2008; 23 308-311
- 4 Yan S L, Chou D A, Wu C S. Inverted Meckel’s diverticulum: a rare cause of obscure GI bleeding. Gastrointest Endosc. 2011; 73 611-612
- 5 Kopacova M, Vykouril L, Vacek Z et al. Inverted Meckel’s diverticulum with ectopic pancreatic tissue as a source of severe gastrointestinal bleeding. J Gastrointest Surg. 2010; 14 578-581
T.-Y. HuangMD, PhD
Division of Gastroenterology
Department of Internal
Medicine
Tri-Service General Hospital
325, Section 2, Cheng-Kung Road
Taipei
114
Taiwan
Republic of China
Fax: +886-2-87927139
Email: teinyu.chun@msa.hinet.net