There are only a few reports of well defined cystic lesions of the per
ipheral skeleton following fracture. In children, these lesions are mo
stly small cortical defects affecting the distal radial metaphysis aft
er a greenstick or torus fracture. A cyst is reported complicating a g
reenstick fracture, together with a brief review of published reports
confirming that these are asymptomatic lesions which can be managed co
nservatively without further investigation.