Case report: an unusual stress fracture in a jogger.

Stress fractures of the proximal fibula are uncommon, but do occur in the distal fibula in long-distance runners. A case is presented of a 71-year-old jogger who presented with a 2-month history of left knee pain. Radiographs showed an apparent destructive lesion of the proximal fibula which resembled a malignant bone lesion. Excision revealed a healing fracture.