Value of Multi-slice CT in Diagnosis of Papillary Renal Cell Carcinoma
10.3969/j.issn.1005-5185.2013.11.017
- VernacularTitle:多层螺旋CT对乳头状肾细胞癌的诊断价值
- Author:
Tianjiao JIANG
;
Li ZHENG
;
Chongfeng DUAN
;
Wei LI
;
Qing YANG
- Publication Type:Journal Article
- Keywords:
Carcinoma,renal cell;
Adenocarcinoma,clear cell;
Tomography,spiral computed;
Diagnosis,differential
- From:
Chinese Journal of Medical Imaging
2013;(11):857-860,863
- CountryChina
- Language:Chinese
-
Abstract:
Purpose To evaluate the value of multi-slice spiral computed tomography (MSCT) scan in the diagnosis of papillary renal cell carcinoma. Materials and Methods A retrospective study was conducted on the findings of plain CT scan and triphasic dynamic contrast enhanced CT scan of 23 patients with papillary renal cell confirmed pathologically, and further contrasted with the findings of 96 patients with clear cell renal cell carcinoma at corresponding phases in such aspects as cystic degeneration, enhancement degree and pattern (homogeneous, peripheral or heterogeneous) and tumor spreading pattern (perinephric invasion, lymphadenopathy or venous invasion). Results The degree of enhancement CT value for both diseases showed statistical significance in corticomedullary phase, parenchymal phase and excretory phase (t=9.70, 8.08, 5.92;P<0.01), but papillary renal cell carcinoma was lower than clear cell renal cell carcinoma. In terms of cystic degeneration, papillary renal cell carcinoma was significantly lower than clear cell renal cell carcinoma (21.7%vs 54.2%,χ2=7.54, P<0.01). Papillary renal cell carcinoma mainly showed homogeneous enhancement (60.9%) whereas clear cell renal cell carcinoma mainly presented heterogeneous enhancement (68.8%) with statistical difference (χ2=30.40, P<0.01). The tumor spreading patterns like perinephric invasion, lymphadenopathy and venous invasion had no significant difference (χ2=0.51, 0.11, 0.03;P>0.05). Conclusion Papillary renal cell carcinoma shows homogeneous enhancement, seldom cystic degeneration or necrosis on MSCT scan, which is helpful for the differential diagnosis from clear cell renal cell carcinoma.
