Fig. 2.

A 58-year-old female patient with bisphosphonate-related osteonecrosis of the jaw after risedronate medication use for 3 years exhibited subtle cortical uptake at the mid-shaft of the right femur (arrow), suggesting the presence of an atypical femur fracture feature on bone scintigraphy (a). Two years later, a complete fracture of the right femur occurred at the same level where the atypical femur fracture feature was noted on the bone scintigraphy (b). Post-operative bone scintigraphy showed intense linear tracer uptake at the fracture site (arrowhead) (c)