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MRI study of normal pituitary glands in stage of puberty
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- Author:
- No author available
- Journal Title:
- CHINESE JOURNAL OF RADIOLOGY
- Issue:
- 10
- DOI:
- 10.3760/j.issn:1005-1201.2005.10.003
- Key Word:
- 青春期;垂体;磁共振成像
Abstract： 目的研究正常青少年垂体大小、形态变化及其与年龄、身高、体重的相关性.方法选取152例6.0～18.9岁正常青少年的垂体MRI资料,于SE序列T1WI头颅正中矢状及冠状面上观测垂体大小形态及信号特征.结果得到6～＜10岁、10～＜15岁、15.0～18.9岁3组正常垂体大小、形态及信号特征资料.在10～＜15岁、15.0～18.9岁组,男性隆凸型分别占47.6%(10/21)、52.0%(13/25),球形垂体分别占14.3%(13/21)、32.0%(8/25);女性隆凸型分别占70.9%(22/31)、90.0%(18/20),球形垂体分别占45.2%(14/31)、60.0%(12/20).青春发育期腺垂体与年龄呈正相关生长(r男=0.74, t=3.624, P=0.004; r女=0.94, t=9.562, P=0.000),与身高、体重无明显相关性(P>0.05).结论青春发育期垂体大小、形态变化大,随年龄增长,垂体明显增生肥大,垂体上缘也逐渐隆凸.球形垂体在青春发育期可为正常现象,在青春期女性中占有很大比率,易与垂体微腺瘤混淆,需结合临床及生化检查结果,避免误诊.
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