[Stromal tumors of the jejunum and obscure gastrointestinal bleeding. Use of minimally invasive techniques in three cases].

Gastrointestinal bleeding is considered to be obscure when routine endoscopic techniques (esophagogastroscopy and colonoscopy) fail to identify the origin of the hemorrhage. These hemorrhages represent 5% of all gastrointestinal bleeding. Twenty-seven percent of these hemorrhages are due to small bowel disease and gastrointestinal stromal tumors (GIST) are a frequent cause, especially in middle-aged patients.