The value of ultrasound combined with CT in identifying early low-grade appendiceal mucinous neoplasm and appendicitis

Frontiers in Oncology

Oncology

Pu Zhang¹  Dong Bai²  Zhiqun Wang²  Haoyu Wang²  Lei Liang³  Ruixue Dou³  Nan Zhou³  Jiajun Wang³ 

[1] Department of Myxoma, Aerospace Center Hospital, Beijing, China;Department of Radiology, Aerospace Center Hospital, Beijing, China;Department of Ultrasound, Aerospace Center Hospital, Beijing, China;

关键词: ultrasound;    CT;    low-grade appendiceal mucinous neoplasm;    appendicitis;    radiology;   

DOI  :  10.3389/fonc.2023.1191785

 received in 2023-03-22, accepted in 2023-08-29,  发布年份 2023

来源: Frontiers

【 摘 要 】

ObjectiveThe aim of this study is to investigate the value of ultrasound combined with computed tomography (CT) in identifying early low-grade appendiceal mucinous neoplasm and appendicitis.MethodsPatients with early low-grade appendiceal mucinous neoplasm and appendicitis from September 2017 to September 2021, including 40 patients with low-grade appendiceal mucinous neoplasm and 40 patients with appendicitis, were collected in this study. Clinical data as well as ultrasound and CT findings of all patients were retrospectively analyzed. Univariate and multivariate logistic regression analyses were applied to establish the ultrasound model, the CT model, and the combined model.ResultsThe nomogram showed that specific characteristics of CT were dilated appendiceal diameter and clear surrounding fat space in the low-grade appendiceal mucinous neoplasm and that specific characteristics of ultrasound were thin or clear layer appendix wall and flocculent echo in the appendix cavity. These four features were used to construct a nomogram for predicting early low-grade appendiceal mucinous neoplasm, and the area under the curve value was 0.839.ConclusionUltrasound combined with CT for diagnosis of early low-grade appendiceal mucinous neoplasm has a significant value; when found significantly dilated appendix in the lower right abdomen, with thin wall, wall calcification, clear surrounding fat space, and progressive enhancement, especially non-specific symptoms similar to appendicitis, the physician should timely consider the possibility of low-grade appendiceal mucinous neoplasm.

【 授权许可】

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Copyright © 2023 Bai, Zhou, Dou, Wang, Zhang, Wang, Wang and Liang