CT and MRI Enchancement Characteristics and Pathological Basis of Aggressive Fibromatosis
10.3969/j.issn.1005-5185.2017.09.008
- VernacularTitle:侵袭性纤维瘤病CT、MRI强化特征及病理基础
- Author:
Xiaoxia WANG
1
;
Li JIANG
;
Linchuan ZHANG
Author Information
1. 新疆维吾尔自治区人民医院放射影像中心 新疆乌鲁木齐830000
- Keywords:
Fibroma;
Magnetic resonance imaging;
Tomography,X-ray computed;
Pathology,surgical
- From:
Chinese Journal of Medical Imaging
2017;25(9):666-670
- CountryChina
- Language:Chinese
-
Abstract:
Purpose To explore CT and MRI representation of aggressive fibromatosis (AF) with key focus on analyzing its enhancement characteristics and pathological relations in order to improve diagnostic accuracy.Materials and Methods Imaging data of 33 AF patients confirmed by pathology was analyzed retrospectively and compared with postoperative pathological results to explore pathological basis of characteristics imaging.Results Of 33 patients,17 were the type of outside abdomen,four abdominal wall and 12 within abdomen,15 of infiltrative growth and 18 of expansive growth.Eight cases scanned by CT showed balanced and progressive enhancement.One case showed enhancement around the nidus but no obvious enhancement of the center.One case showed envelop enhancement ofnidus edges.23 cases showed unbalanced and progressive enhancement of the nidus,among which nine showed obvious enhancement on the lower density area after enhancement and slight enhancement of higher density area,representing characteristics of density reverse.MRI showed that unbalanced signal of seven nidus,most of which were with longer T1 and T2 signal.Among them,irregular short T2 signal area could be seen in five cases,with obvious enhancement of longer T1 and longer T2 signal area and slight enhancement of short T2 signal area after enhancement.Pathologically,tumor was comprised of spindle fibroblast and collagen fiber of different proportions.Cell dense region corresponds to long T2 signal area with relative lower density,which was obviously enhanced after enhancement.While collagen fiber rich region corresponded to short T2 signal area with relative higher density,which is slightly enhanced after enhancement.Conclusion CT and MRI enhancement method of AF are of certain characteristics,which are helpful for diagnosis before surgery.
