- AKA pseudofractures
- AKA Looser's zones
- Considered to be a type of insufficiency fracture.
- Radiolucent areas occurring at right angles to the cortex and extending across a portion of the bone diameter
- Frequently bilateral
- Characteristic sites of involvement are the axillary margins of the scapula, ribs, pubic rami, proximal end of the femur, and ulna.
- Seen with
 Imaging Findings