![](https://www.endotext.org/wp-content/uploads/2017/01/etx-pth-ch5-figure1.jpg)
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 #80).