title: Paediatric post-traumatic osseous cystic lesion following a distal radial fracture.
abstract: Post-traumatic osseous cystic lesions are a rare complication in children. An aetiology of intramedullary fat seepage through the damaged bone cortex and its entrapment within the subperiosteum has been proposed. These lesions run a benign course and usually resolve spontaneously. The presence of fatty marrow gives it a distinct appearance which aids in its diagnosis and differentiation from other bone lesions. This case demonstrates a fat-fluid level within the subperiosteal cystic lesion in Magnetic Resonance Imaging (MRI) and this is a typical feature of post-traumatic cystic lesion in a child. Recognition of this imaging feature allows for a confident diagnosis, cutting down on unnecessary, potentially invasive investigations.
authors.affiliation: Department of Diagnostic Imaging, KK Women's and Children's Hospital, Singapore.
authors.forename: Joey Chan Yiing
authors.initials: JC
authors.lastname: Beh
authors.affiliation: Department of Diagnostic Imaging, KK Women's and Children's Hospital, Singapore.
authors.forename: Ehab Shaban Mahmoud
authors.initials: ES
authors.lastname: Hamouda
mesh_terms: D000058:Accidental Falls; D000293:Adolescent; D001845:Bone Cysts / Q000000981:diagnostic imaging* / Q000209:etiology*; D003937:Diagnosis, Differential; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D011885:Radius Fractures / Q000150:complications* / Q000000981:diagnostic imaging / Q000628:therapy
keywords: Magnetic Resonance Imaging; Post-traumatic; cyst; fracture; osseous