CT image features of urinary tract inflammatory myofibroblastic tumor
10.3760/cma.j.issn.1000-6702.2013.03.012
- VernacularTitle:泌尿系统炎性肌纤维母细胞瘤的CT影像学特征分析
- Author:
Bin QIAN
;
Jingtao WU
;
Xiaohua HU
;
Jian BAO
;
Hongwei CHEN
- Publication Type:Journal Article
- Keywords:
Urogenital neoplasms;
Inflammatory myofibroblastic tumor;
Imaging
- From:
Chinese Journal of Urology
2013;(3):204-207
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the CT image features of urinary tract inflammatory myofibroblastic tumor (IMT) for use in clinical and differential diagnosis.Methods Eight pathologically proven IMT cases were retrospectively analyzed in this study.There were six female patients and two male patients.Patient average age was 35 (13-62) years.The main clinical manifestations were hematuria and urination pain.Tumors were found in the bladder in 5 cases,in ureter in 2 cases and in urethra in 1 case.All the 8 cases accepted CT scan five of which had contrast enhanced CT scan.The imaging features were then analyzed.Results Of the IMT in bladder,CT scan showed a cauliflower like bladder tumor or round soft tissue mass with even or uneven density of 11.5-36.0 HU.Three tunors were accompanied with necrosis.Four cases had associated adjacent bladder wall thickening and two cases were found with fuzzy surrounding fat space.Ureteral lesions in two cases showed a solid mass with smooth edges and even density of 40.3 HU compared to the surrounding muscle.The urethral lesions had clear mass realm of 17.5-22.6 HU accompanied with calcification.Enhanced CT scan showed that homogeneous or heterogeneous mild to moderate enhancement was found in the tumor.Delayed phase showed consistant enhancement of 102.7-118.6 HU.Conclusion Tumor CT imaging features,particularly the significant and consistant enhancement in delayed phase,provide important information for diagnosis and differential diagnosis of the urinary tract IMT.
