title: Massive retroperitoneal lipoma in a mongoloid child.
mesh_terms: D000293:Adolescent; D004314:Down Syndrome / Q000150:complications*; D005260:Female; D006801:Humans; D008067:Lipoma / Q000000981:diagnostic imaging; D011859:Radiography; D012186:Retroperitoneal Neoplasms / Q000000981:diagnostic imaging