title: Erdheim-Chester disease associated with retroperitoneal xanthogranuloma.
mesh_terms: D001847:Bone Diseases / Q000150:complications*; D006099:Granuloma / Q000150:complications*; D006801:Humans; D008064:Lipidoses / Q000150:complications*; D008297:Male; D008875:Middle Aged; D012187:Retroperitoneal Space; D013577:Syndrome; D014973:Xanthomatosis / Q000150:complications*