preferred_name: Concentric arcs of sclerosis in iliac wings ('bone-within-bone' sign)
preferred_name_lc: concentric arcs of sclerosis in iliac wings ('bone-within-bone' sign)
label: Concentric arcs of sclerosis in iliac wings ('bone-within-bone' sign)
label_lc: concentric arcs of sclerosis in iliac wings ('bone-within-bone' sign)