Imaging findings of papillary tumor of the pineal region and literature review
10.3969/j.issn.1002-1671.2024.03.002
- VernacularTitle:松果体区乳头状肿瘤的影像表现并文献复习
- Author:
Xufei ZHANG
1
;
Lining WANG
;
Jie GAO
;
Jianxin HU
;
Chenyang LIANG
;
Mingwang ZHU
Author Information
1. 首都医科大学三博脑科医院影像科,北京 100093
- Keywords:
pineal gland;
papillary tumor;
magnetic resonance imaging;
computed tomography
- From:
Journal of Practical Radiology
2024;40(3):352-355
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the imaging features of papillary tumor of the pineal region(PTPR).Methods The ima-ging data of 10 patients with PTPR confirmed by operation and pathology were analyzed retrospectively.Results All lesions were located in the posterior commissure area of the posterior inferior wall of the third ventricle.All lesions were heterogeneously hyper-intensity on T1WI and hyperintensity on T2WI.Multiple small cysts or microcapsules signal intensity were observed within the tumor.Of all 10 lesions,there were 9 lesions with high signal intensity within or at the edge of the lesion on T1WI.All lesions showed restricted diffusion.All 10 cases showed uneven and obvious enhancement patterns.Midbrain tectum was compressed and moved backward in 5 cases,moved downward in 2 cases,moved forward and downward in 1 case,and was not clearly displayed in other 2 cases.One case was disseminated and 1 case was hyperperfusion.There were all 10 cases with obstructive hydrocephalus and equal or slightly high density on CT imaging,and 4 cases with calcification.Conclusion Imaging characteristics of PTPR included the lesions centered on the posterior commissure,compressed tectum with backward and downward,multiple small cysts or micro-capsules components within the tumor,hyperintensity on T1WI,and uneven and obvious enhancement patterns.
