Head and Neck Imaging
The Invasive Signs on MRI of Invasive Pituitary Adenomas
Author：LAN Yi-feng, LU Lie-jing, LIANG Bi-ling,et al.
affiliation：Department of Radiology, Nanhai District Sixth People's Hospital,Foshan 528248, P.R.China
PDFAbstract
Objective To explore the invasive signs on MRI of invasive pituitary adenomas(IPA). Methods A total of 48 patients with giant pituitary adenoma diagnosed by MRI were analyzed, in which, 42 cases were confirmed by surgery. Results The appearance of the tumor was iso-intense on T1WI, iso-intense or high-intense on T2WI, and homogeneously or heterogeneously enhanced after Gd-DTPA injection. MRI findings of invasiveness included encasement of internal carotid artery, invasion of the sella turcica and adjacent bones, involvement of sphenoid sinus and cavernous sinus. 19 cases with grade-4 invasion and 8 cases with grade-3 invasion on MRI were confirmed involvement of cavernous sinus and encasement of internal carotid artery wholly or partly by surgery. Conclusion MRI results have good consistency with the operation. MRI is helpful in evaluating the invasion of pituitary adenomas before operation, which is of great clinical significance for the management of the disease．
【Keyword】Invasiveness; Pituitary Adenoma; Magnetic Resonance Imaging; Diagnosis
【Chart number】R736.4
【Document Identification Number】A
【DOI】 10.3969/j.issn.1672-5131.2015.03.07
Chinese journal of CT and MRI
th13Volume， th 3 Issue
2015Year03Month
Related articles
Editor email：（1）中国CT和MRI杂志：ctmri@vip.163.com；（2）罕少疾病杂志：hs1999@vip.163.com
Contact number：0755-83695203
Our address：
English
简体中文
logged in
Wechat
TouTiao