![](https://www.endotext.org/wp-content/uploads/parathyroid/5/parathyroid5_clip_image004_0000.gif)
Figure 1.The pattern of bone loss in primary hyperparathyroidism. A typical pattern of bone loss is seen in asymptomatic patients with primary hyperparathyroidism. The lumbar spine is relatively well preserved while the distal radius (1/3 site) is preferentially affected. (Reprinted with permission from reference #79).