One of the most common findings in skeletal radiology is increased radiolucency of bone, most properly termed osteopenia. This term is much preferred over terms such as "demineralization" or "undermineralization", since we really can't tell the exact mineral status of the patient's bone from the radiograph alone. The most common cause by far of osteopenia is osteoporosis. This, and other disease entities that can cause osteopenia will be discussed here.

• Teacher: Michael Richardson