title: Retrograde jejunogastric intussusception: an unusual cause of hematemesis (a case report).
mesh_terms: D000328:Adult; D004381:Duodenal Ulcer / Q000601:surgery; D005763:Gastroenterostomy / Q000009:adverse effects; D006396:Hematemesis / Q000209:etiology*; D006801:Humans; D007443:Intussusception / Q000150:complications* / Q000209:etiology; D007579:Jejunal Diseases / Q000150:complications* / Q000209:etiology; D007583:Jejunum / Q000601:surgery; D008297:Male; D013997:Time Factors