Cyst-like lesions are a rare radiologic presentation following fractures in children. We report the case of a 3-year-old boy having three cyst-like lesions after a buckle fracture of his left radius that was diagnosed with digital radiography and CT scan. We also describe the lesions’ ultrasonographic appearance, which has not been addressed in other studies. The keys to diagnosis depend on the clinical context and the radiologic appearance. The cyst-like lesions occur several weeks after a non-displaced fracture in an asymptomatic child. The radiologic appearance shows small, well-defined lucent lesions located near the fracture site, in the subperiosteal space and bone callus. Ultrasonography can be useful to confirm the subperiosteal location and to exclude adjacent soft-tissue abnormalities. In cases requiring further clarity, MRI can be performed to identify the fatty content and exclude osteomyelitis.
This is a preview of subscription content, log in to check access.
Compliance with ethical standards
Conflicts of interest
Pfister-Goedeke L, Braune M (1981) Cyst like defects following fractures in children. Pediatr Radiol 11:83–86CrossRefGoogle Scholar
Roach RT, Cassar-Pullicino V, Summers BN (2002) Paediatric post-traumatic cortical defects of the distal radius. Pediatr Radiol 32:333–339CrossRefGoogle Scholar
Malghem J, Maldague B (1986) Transient fatty cortical defects following fractures in children. Skelet Radiol 15:368–371CrossRefGoogle Scholar
Malghem J, Maldague B, Claus D, Clapuyt P (1990) Transient cyst-like cortical defects following fractures in children. Medullary fat within the subperiosteal haematoma. J Bone Joint Surg Br 72:862–865CrossRefGoogle Scholar
Freire G, Cruz R, Valentim MH et al (2019) Post-traumatic cyst-like lesion of cortical bone in children. Skelet Radiol 48:167–174CrossRefGoogle Scholar
Pérez IG, Salinas JTL, Navalón LAG et al (2016) Cyst-like cortical defects following fractures in children: series of 5 cases. Trauma Cases Rev 2:040CrossRefGoogle Scholar