MRI manifestations of temporomandibular joint in juvenile idiopathic arthritis
10.13929/j.issn.1003-3289.2025.04.026
- VernacularTitle:幼年型特发性关节炎颞下颌关节MRI表现
- Author:
Huafeng XU
1
;
Ruizhu WANG
;
Yanli XI
;
Ying WANG
Author Information
1. 上海市儿童医院,上海交通大学医学院附属儿童医院影像科,上海 200062
- Publication Type:Journal Article
- Keywords:
arthritis,juvenile;
temporomandibular joint;
magnetic resonance imaging
- From:
Chinese Journal of Medical Imaging Technology
2025;41(4):632-636
- CountryChina
- Language:Chinese
-
Abstract:
Objective To observe MRI manifestations of temporomandibular joint(TMJ)involvement of juvenile idiopathic arthritis(JIA).Methods Sixteen children with JIA who underwent MR examination of TMJ were retrospectively enrolled.Clinical data were collected,MRI manifestations of inflammation domain and damage domain of TMJ were observed,and evaluation based on JIA MRI scoring system for TMJ(JAMRIS-TMJ)was performed.Results Among 16 children with JIA,14 exhibited symptoms associated with TMJ involvement.One or multiple abnormal MRI manifestations were noticed in 25(25/32,78.13％)TMJ,including bone marrow edema in 12(12/32,37.50％),effusion in 8(8/32,25.00％)and synovial thickening in 6(6/32,18.75％),condylar flattening in 10(10/32,31.25％),bone erosion in 6(6/32,18.75％)and articular disc abnormalities in 2(2/32,6.25％)TMJ,while no obvious abnormality was observed in 7(7/32,21.88％)TMJ.Among 4 JIA children who underwent enhanced MR scanning,enhanced bone marrow was found in 2(2/8,25.00％),while synovial enhancement was observed in 4(4/8,50.00％)TMJ.According to JAMRIS-TMJ scoring,for inflammation domain,there were 7(7/32,21.88％)normal TMJ,17(17/32,53.13％)mild and 8(8/32,25.00％)moderate/severe inflammation TMJ,while for damage domain,there were 12(12/32,37.50％)normal TMJ,14(14/32,43.75％)mild and 6(6/32,18.75％)moderate/severe damage TMJ.Conclusion MRI manifestations of TMJ involvement of JIA mainly included bone marrow edema,joint effusion,condylar flattening and so on.
