The correct answer is C. Pain in the proximal thigh without trauma could be a symptom indicating a possible atypical femur fracture. This is a rare but dangerous complication from osteoporosis medications. A thickening of the lateral cortex can be a sign of an impending atypical femur fracture. The fracture is usually located in the subtrochanteric area or in the shaft region of the proximal femur. The fracture is often transverse and can also be bilateral.
Verified by Dimitar Popov