Imaging findings of 14 cases of intestinal schwannoma
10.3969/j.issn.1672-8467.2024.01.009
- VernacularTitle:14例肠道神经鞘瘤的影像学表现
- Author:
Yong YU
1
;
Shen-Chu GONG
;
Rui-Ting WANG
;
Kai HOU
;
Xiu-Liang LU
;
Li-Heng LIU
;
Jian-Jun ZHOU
;
Yu-Qin DING
Author Information
1. 南通大学第二附属医院/南通市第一人民医院影像科 南通 226001
- Keywords:
intestinal schwannoma(IS);
tomography,X-ray computer;
magnetic resonance imaging;
positron emission tomography
- From:
Fudan University Journal of Medical Sciences
2024;51(1):62-68
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the imaging features of intestinal schwannoma(IS)in order to improve the diagnostic ability of the disease.Methods The clinical and imaging data of 14 patients with surgically and pathologically confirmed IS were retrospectively analyzed,including the location,size,morphology,nature,growth pattern,CT density,MRI signal,PET/CT metabolism and other characteristics of the tumors.Results Of the 14 IS cases,the lesions of 3 cases were located in the duodenum,2 cases in the cecum,8 cases in the colon and 1 case in the rectum.The lesions were all round or oval,with an average maximum diameter of(2.4±1.1)cm.The lesions were solid in 13 cases,extraluminal growth in 10 cases,cystic degeneration in 1 case and myxoid degeneration in 1 case.Chronic inflammatory lymph nodes were seen around the diseased intestines in 9 cases,and the short diameter of lymph nodes was greater than 5 mm in 6 cases.All 14 cases of IS showed low attenuation on plain CT scan,and progressive enhancement after contrast injection,including 1 case of mild enhancement,2 cases of moderate enhancement,and 11 cases of obvious enhancement.Two cases of IS showed low signal intensity on T1WI,slightly high signal intensity on T2WI,significantly high signal intensity on DWI,and obvious progressive enhancement after contrast injection on MRI.Two cases of IS showed high metabolism on 18F-FDG-PET/CT,and the SUVmax was 9.4 and 8.8,respectively.Conclusion The imaging findings of IS were characteristic to a certain extent.They mainly manifested as solid nodules or masses derived from the intestinal submucosa,with uniform attenuation or signal intensity,obvious progressive enhancement after contrast injection,obvious hypermetabolism on 18F-FDG-PET/CT,and slightly larger homogeneous lymph nodes were common around the lesions.
