Cederlund C G, Andrén L, Olivecrona H
Skeletal Radiol. 1982;8(1):29-33. doi: 10.1007/BF00361365.
Observation of a case of progressive bilateral parietal thinning within a period of 14 years induced us to study skull films of 3,636 consecutive patients. Parietal thinning was found in 86 patients (2.37%). It was more common in women, with a sex ratio of 1:1.9. The mean age of the females was 72 years, and that of the males 63 years. Previous skull films of 25 of these patients were available and showed progression in 10. It is concluded that parietal thinning is a slowly progressive disease of middle-aged and old patients and is not an anatomical variant or congenital dysplasia of the diploe.
对一例在14年时间里双侧顶骨进行性变薄的病例观察促使我们研究了3636例连续患者的颅骨X光片。在86例患者（2.37%）中发现了顶骨变薄。女性更为常见，男女比例为1:1.9。女性的平均年龄为72岁，男性为63岁。其中25例患者有既往颅骨X光片，10例显示有进展。结论是，顶骨变薄是中老年患者的一种缓慢进展性疾病，并非板障的解剖变异或先天性发育异常。
