Department of Ophthalmology, School of Medicine, University of Dankook at Cheonan, South Korea; and.
J Neurosurg. 2014 Feb;120(2):538-42. doi: 10.3171/2013.10.JNS131265. Epub 2013 Dec 6.
The sella turcica usually appears partially empty in MR images obtained from patients with chronic elevation of intracranial pressure. The authors measured the size of the sella turcica to determine if enlargement of the pituitary fossa explains the partially empty sella associated with pseudotumor cerebri.
The medical records from 2005 to 2011 of a single neuro-ophthalmologist were searched to identify consecutive patients with pseudotumor cerebri. Age-matched control patients were selected from the same practice. The sella turcica and pituitary gland were measured on sagittal T1-weighted MR images.
Measurements were obtained for 48 patients with pseudotumor cerebri and 48 controls. The cross-sectional area of the sella was 38% greater in the patients with pseudotumor cerebri, with only a slight reduction in mean pituitary gland size.
Chronic elevation of intracranial pressure is associated with bony enlargement of the sella turcica. Enlargement of the sella turcica contributes to its partially empty appearance.
在因颅内压慢性升高而接受磁共振成像（MRI）检查的患者中，蝶鞍通常表现为部分空泡状。作者测量了蝶鞍的大小，以确定是否是由于蝶鞍窝扩大导致了与假性脑瘤相关的部分空泡蝶鞍。
作者对 2005 年至 2011 年间一位神经眼科医生的病历进行了检索，以确定连续的假性脑瘤患者。从同一实践中选择年龄匹配的对照组患者。在矢状 T1 加权 MRI 图像上测量蝶鞍和垂体的大小。
共获得 48 例假性脑瘤患者和 48 例对照组患者的测量值。假性脑瘤患者的蝶鞍截面积比对照组大 38%，而垂体平均大小仅有轻微缩小。
颅内压慢性升高与蝶鞍骨扩大有关。蝶鞍扩大导致其部分空泡状外观。
