CT and MR findings of duodenal stromal tumors
10.3969/j.issn.1002-1671.2025.06.017
- VernacularTitle:十二指肠间质瘤的CT及MR表现
- Author:
Mei JIN
1
;
Xinyue ZHANG
1
;
Jiyuan LI
1
;
Jinsong GUO
1
;
Ning ZHANG
1
;
Yunlong YUE
1
Author Information
1. 首都医科大学附属北京世纪坛医院医学影像科,北京 100038
- Publication Type:Journal Article
- Keywords:
duodenum;
stromal tumors;
magnetic resonance imaging;
computed tomography
- From:
Journal of Practical Radiology
2025;41(6):974-978
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the CT and MR features of duodenal stromal tumors(DST).Methods The clinical,imaging and pathological data of patients with pancreaticoduodenal groove(PDG)mass detected by CT and/or MR,and pathologically diagnosed as DST were retrospectively analyzed.All imaging features were analyzed.Results Finally,all 11 patients were included,all of whom presented external mass in descending duodenum with clear boundary.There were 5 patients with irregular mass and 6 patients with circular mass.Two patients showed homogeneous mass on plain CT and MR imaging,while 9 patients presented heterogeneous mass(with varying degrees of calcification,hemorrhage,cystic degeneration,and necrosis),showed heterogeneous density on CT findings or high,low and iso signals on T1WI and T2WI without high signal on diffusion weighted imaging(DWI),and high enhancement on arterial phase,portal venous phase and delayed phase.There were no signs of air accumulation in all masses.Conclusion Stromal tumors commonly present external heterogeneous mass in descending duodenum with clear boundary.Familiarity with its predilection location and corresponding CT and MR findings are helpful for the qualitative diagnosis of DST.
