title: [Hematemesis secondary to esophageal varices as the only manifestation of pre-hepatic portal hypertension. Report of 4 cases].
mesh_terms: D002648:Child; D002675:Child, Preschool; D004932:Esophageal and Gastric Varices / Q000150:complications* / Q000175:diagnosis; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000209:etiology; D006396:Hematemesis / Q000209:etiology*; D006801:Humans; D006975:Hypertension, Portal / Q000150:complications*; D007223:Infant; D008297:Male; D011169:Portal Vein; D013927:Thrombosis / Q000150:complications
vernacular_title: Hematemesis secundaria a várices esofágicas como única manifestación de hipertensión porta prehepática. Informe de cuatro casos.