title: Transient fatty cortical defects following fractures in children.
abstract: Self-regressing subperiosteal defects appearing during consolidation of fractures were observed in two children aged 6 and 10 years, in the tibia and the radius respectively. These transient defects appeared several weeks after fracture, at a distance from the fracture site. They involved the newly formed subperiosteal bone, did not enlarge, and were replaced progressively by normal-appearing bone. A computed tomography (CT) study performed on one of these defects demonstrated a density consistent with a fatty content. It is suggested that these transient post-traumatic defects could result from the inclusion of medullary fat drops within the subperiosteal hematoma near the fracture site.
mesh_terms: D001845:Bone Cysts / Q000000981:diagnostic imaging* / Q000209:etiology; D001853:Bone Marrow / Q000000981:diagnostic imaging; D002146:Bony Callus / Q000000981:diagnostic imaging*; D002648:Child; D006406:Hematoma / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D011885:Radius Fractures / Q000000981:diagnostic imaging*; D013978:Tibial Fractures / Q000000981:diagnostic imaging*; D013997:Time Factors; D014057:Tomography, X-Ray Computed; D014945:Wound Healing