title: Gastroesophageal polyp as a cause of hematemesis in adolescence.
mesh_terms: D000293:Adolescent; D003680:Deglutition Disorders / Q000209:etiology; D003937:Diagnosis, Differential; D004724:Endoscopy; D004938:Esophageal Neoplasms / Q000150:complications*; D004943:Esophagogastric Junction; D004947:Esophagus / Q000601:surgery; D006396:Hematemesis / Q000209:etiology*; D006801:Humans; D008297:Male; D011127:Polyps / Q000150:complications*