1. Many congenital hydrocephalics have a dome-shaped, prominent calvarium .

2. Method:First culture osteoblast by method of calvarium bone digesting with new-born rats, then added SP and CGRP of different concentrations, counted the cells and determined the ALP activity.

3. The Nanjing 2 calvarium is believed to represent Homo sapiens erectus since its discovery in 1993. This calvarium preserves incomplete frontal, parietal, and occipital bones.

4. The involved bone is usually thinner than the normal bone which helps to differentiate from other lesions which tend to expand the calvarium or destroy cortex.

5. In the latter case, abscessation may be present inside the calvarium.

6. CT or MRI can be use to demonstrate vascular anomaly with thinning of the calvarium.

7. Objective:To investigate the effect of Astralus on the osteogenic capacity of calvarium osteoblasts in vitro.

8. As the condition progresses there is compensatory thickening of the calvarium and hyperpneumatization of paranasal sinuses.

9. An 80-year-old man presented with a soft nodule in the left parietal calvarium and was admitted to our hospital.