Presentation
Pain in the left knee.
Patient Data
Transverse fracture line through the proximal tibia.
There is a transverse fracture line at the lateral aspect of the proximal tibial diaphysis, incomplete, surrounded by faint marrow hyperdensity, and showing new periosteal bone formation. No other fractures are seen, bone alignment is preserved. Mild joint knee degenerative changes are noted. No abnormal amount of joint effusion.
Transverse stress fracture of a low signal intensity of the proximal tibia with surrounding bone marrow edema of high signal.
Case Discussion
The imaging features are those of a subacute stress fracture of the proximal tibia.