title: [Pancreatic reticulosarcoma in a 12-year-old boy].
mesh_terms: D002648:Child; D006471:Gastrointestinal Hemorrhage / Q000209:etiology; D006801:Humans; D008228:Lymphoma, Non-Hodgkin / Q000150:complications / Q000473:pathology*; D008297:Male; D010190:Pancreatic Neoplasms / Q000150:complications / Q000473:pathology*
vernacular_title: Przypadek miesaka siateczkowego trzustki u dwunastoletniego chłopca