This Publication Is Searchable The Merck Manual of Diagnosis and Therapy Section 3. Gastrointestinal Disorders Chapter 34.
Polyps are more common in the colon than in the small bowel.
Hemangiomas may bleed or intussuscept. Angiodysplasias or arteriovenous malformations, consequences of aging, tend to occur in the distal small bowel or cecum. Diagnosis and Treatment Endoscopy of the small bowel with an enteroscope may be used to visualize and biopsy tumors and coagulate bleeding lesions of the duodenum and proximal jejunum. If a surgeon must operate without knowing the bleeding site, transillumination of the bowel or intraoperative endoscopy may help locate the small-bowel lesion. Electrocautery, thermal obliteration, or laser phototherapy at the time of enteroscopy or surgery may be an alternative to resection.