Appendiceal mucinous neoplasms:imaging features and correlation with pathology
10.3969/j.issn.1002-1671.2017.01.019
- VernacularTitle:阑尾黏液性肿瘤影像学表现及病理相关性研究
- Author:
Di ZHANG
;
Hongxia WANG
;
Peigong ZHANG
;
Yan FENG
;
Wenwen DENG
;
Xingyue JIANG
- Keywords:
appendix;
mucinous neoplasm;
computed tomography;
magnetic resonance imaging
- From:
Journal of Practical Radiology
2017;33(1):69-71,102
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the imaging features of appendiceal mucinous neoplasms and their correlation with the pathology results.Methods The imaging data of 1 6 patients with histopathology proved appendiceal mucinous neoplasms were analyzed retrospectively including mucinous adenoma in 2,low-grade appendiceal mucinous neoplasm (LAMN)in 10,and appendiceal adenocarcinoma in 4. The imaging features were correlated with the result of pathology.Results Mucinous cystadenoma was usually a long oval or strip low density cystic structures with smooth capsule wall and well defined border.Mucinous adenocarcinoma usually presented as a irregular solid-cystic mass with ill-defined border and nodular or separation enhancement.The tumor often infiltrated adjacent bowels,and some of them were accompanied with pseudomyxoma peritonei (PMP)and abdominal implantation metastasi.LAMN had low potential malignancy.The imaging features were between cystadenoma and cystadenocarcinoma.Most cases were similar to mucinous cystadenoma, and some were like to mucinous cystadenocarcinoma.Conclusion The appendiceal mucinous neoplasms have various imaging manifestations. Some cases show some CT and MRI characteristics,which are benefit to the diagnosis of these diseases.
