Review
Copyright ©2014 Baishideng Publishing Group Inc.
World J Gastrointest Pathophysiol. Aug 15, 2014; 5(3): 271-283
Published online Aug 15, 2014. doi: 10.4291/wjgp.v5.i3.271
Table 1 Causes of obscure gastrointestinal bleeding (in order of frequency)
Overlooked lesions in the upper GI tract or in the colon
Upper GI tract (proximal to the angle of Treitz)
Cameron ulcers
Fundic varices
Peptic ulcer
Angiectasia
Dieulafoy lesion
Gastric antral vascular ectasia
Colorectal lesions
Angiectasia
Polyps
Neoplasms
Anal disease
Dieulafoy lesion
Mid-GI tract lesions
< 40 yr
Meckel diverticulum
Dieulafoy lesion
Tumors (GIST, Lymphoma, Carcinoids, etc.)
Inflammatory bowel disease
Celiac disease
40-60 yr
Small bowel tumors
Angiodysplasia
Celiac disease
NSAID’s related lesions
> 60 yr
Angiodysplasia
Small bowel tumors
NSAID’s related lesions
Rare causes (< 1%)
Haemobilia
Aortoenteric fistula
Hemosuccus pancreaticus