Ultrasound and Contrast-Enhanced Ultrasound Findings of Epiploic Appendagitis
10.3969/j.issn.1005-5185.2024.12.011
- VernacularTitle:肠脂垂炎的超声及超声造影表现
- Author:
Fan YANG
1
;
Jingyuan LIU
1
;
Yuan CHEN
1
;
Jianmei LEI
1
;
Lingfang YU
1
;
Huolin WU
1
Author Information
1. 中国人民解放军联勤保障部队第九〇七医院超声科,福建 南平 353000
- Publication Type:Journal Article
- Keywords:
Epiploic appendagitis;
Ultrasonography;
Contrast media;
Diagnosis,differential
- From:
Chinese Journal of Medical Imaging
2024;32(12):1256-1259
- CountryChina
- Language:Chinese
-
Abstract:
Purpose To investigate the conventional ultrasound and contrast-enhanced ultrasound features of epiploic appendagitis (EA). Materials and Methods A retrospective study was performed on 23 patients who were diagnosed with EA in the 907th Hospital of Chinese People's Liberation Army Joint Logistic Support Force from May 2016 to May 2023. The conventional and contrast-enhanced ultrasound findings were analyzed,and the subsequent evolution of ultrasound findings were followed up. Results All 23 patients presented with a solitary mass adjacent to the colon or cecum,with eleven masses being oval,eight being elliptical and four irregular in shape. The margin of the mass was clear in 15 cases,with 12 cases showing a linear hypoechoic rim around the mass. All 23 masses appeared as solid hyperechoic lesions,with two cases showing internal inhomogeneous echoes and linear hypoechoic areas,three cases showing mild thickening of the adjacent intestinal wall and 19 cases showing adhesion to the anterior abdominal wall and fixed in position. No obvious blood flow signals were detected inside the masses in all 23 cases,while only five cases showing slight blood flow signals around the mass periphery. Contrast-enhanced ultrasound demonstrated that the central part of the mass did not enhance,while the edge of the mass showed a ring-shaped hyperenhancement with a thickness of approximately 0.20-1.50 cm in ten patients. Follow-up ultrasound examinations were performed in 12 patients,and the results showed that seven patients had complete disappearance of the initial mass,with one patient found to have a loose body in the rectouterine pouch,and the volume of the mass in the remaining five patients showed varying degrees of reduction during the follow-up period. Conclusion The characteristics of contrast-enhanced ultrasound in EA include a central necrotic area without enhancement,showing a ring-shaped enhancement at the edge. Contrast-enhanced ultrasound is a highly effective imaging modality that can provide strong evidence for the clinical diagnosis of EA by visualizing the size and extent of the infarcted epiploic appendage.
