CT Study of the Internal Occipital Protuberance
- VernacularTitle:枕内隆凸的CT研究
- Author:
Lin LUO
;
Bolang YU
;
Zezhong WANG
;
Ming ZHANG
- Publication Type:Journal Article
- Keywords:
occipital bone;
internal occipital protuberance;
tomgraphy,X-ray computed
- From:
Journal of Practical Radiology
1992;0(11):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the development and shape of the occipital protuberance and its clinical significance with normal cranial CT scans.Methods 3000 cases of normal cranial CT images were selected.There were 1500 males and 1500 females,which were divided into nine age groups.The internal occipital protuberances were observed and measured on bone-window.Results The internal occipital protuberance was seen earlist at four-month-old-infant,and growth with age.The shape of the internal occipital protuberance was classified into four types:single-peak-type,plane-protusion-type,tropezoid-type and irregular-type.The single-peak-type was seen most commonly.Big semilunar depression of the internal occipital protuberance could be seen in patient with magna citern arachnoid cyst.Conclusion The height and shape of normal internal occipital protuberance have many diversities.Big semilunar depression of the internal protuberance is a important sign in diagnosis of magna cistern arachnoid cyst.
