Gangliocytic paraganglioma, a rare cause of upper gastrointestinal bleeding : endoscopic ultrasound findings presented

Gangliocytic paraganglioma (GP) is an uncommon benign neurogenic tumor of the digestive tract that is usually located in the descending duodenum. Patients with GP usually present with upper gastrointestinal hemorrhage, which reflects the tendency of the tumor to ulcerate the mucosa. The authors report a patient in whom the tumor was overlooked on routine radiologic examinations and initial endoscopy. It was discovered in the distal transverse duodenum at small bowel enteroscopy. The findings of endoscopic ultrasonography are correlated with radiographic and histologic examination. 10 refs.