Different Types of Invasive Renal Pelvic Carcinoma: MDCT Dynamic Enhancement Performance and Misdiagnosis Analysis
Author(s): YAO Jing, ZHOU Jianjun
Pages: 526-530
Year: 2017 Issue: 4
Journal: Journal of Clinical Radiology
Keyword: Kidney neoplasm; Carcinoma of the renal pelvis;
Abstract: Objective Analyzing the enhanced CT features of invasive carcinoma of the renal pelvis with the aim of improving diagnostic accuracy.Methods 20 cases of CT manifestations of invasive carcinoma of renal pelvis which was confirmed by surgical excision and pathology examination were analyzed retrospectively,having received MDCT or CTU scanning preoperatively.According to the radiographic images of the tumor in the renal pelvis and the degree of infiltration of the renal parenchyma,these cases were divided into type Ⅰ.:infiltrating tumor type,apparent mass of the renal pelvis can be seen,lesions bulge height (H) ≥transverse diameter (L),renal sinus fat was invaded,with or without infiltration of the renal parenchyma;Type Ⅱ:superficial infiltration type,the flat mass in renal pelvis,lesions bulge height (H) ＜ transverse diameter (L),disappeared renal sinus fat,with infiltrated renal parenchyma,additionally,a flat pelvic mass,thickened wall of the renal pelvis and renal parenchyma mixed together;Type Ⅲ:deep infiltration,spread outside of the renal pelvis,no obvious mass in the renal pelvis,thickened wall of the renal pelvis、mass and renal parenchyma were fused,usually with enlarged lymph nodes,invasion of blood vessels and adjacent ureter.Results In these 20 cases,16 were diagnosed with renal pelvis carcinoma,1 case was wrongly diagnosed as renal carcinoma,1 was misdiagnosed as acute pyelonephritis and 1 was collecting tubule carcinoma.All of them were finally diagnosed as invasive carcinoma of renal pelvis by surgical excision and pathology examination.Type Ⅰ was 4 cases,Ⅱ was 4 and Ⅲ was 12.Conclusion The diagnosis of invasive carcinoma of the renal pelvis is not only according to the renal pelvic mass or the infiltrated renal sinus fat and renal parenchyma,sometimes the mass,renal pelvis and renal parenchyma in combination,and sometimes the infiltration outside the renal pelvis is very obvious,however,the thickened wall of renal pelvis is not so obvious.Knowing different manifestations of invasive carcinoma of renal pelvis is useful to improve the diagnostic accuracy.
Pages: 526-530
Year: 2017 Issue: 4
Journal: Journal of Clinical Radiology
Keyword: Kidney neoplasm; Carcinoma of the renal pelvis;
Abstract: Objective Analyzing the enhanced CT features of invasive carcinoma of the renal pelvis with the aim of improving diagnostic accuracy.Methods 20 cases of CT manifestations of invasive carcinoma of renal pelvis which was confirmed by surgical excision and pathology examination were analyzed retrospectively,having received MDCT or CTU scanning preoperatively.According to the radiographic images of the tumor in the renal pelvis and the degree of infiltration of the renal parenchyma,these cases were divided into type Ⅰ.:infiltrating tumor type,apparent mass of the renal pelvis can be seen,lesions bulge height (H) ≥transverse diameter (L),renal sinus fat was invaded,with or without infiltration of the renal parenchyma;Type Ⅱ:superficial infiltration type,the flat mass in renal pelvis,lesions bulge height (H) ＜ transverse diameter (L),disappeared renal sinus fat,with infiltrated renal parenchyma,additionally,a flat pelvic mass,thickened wall of the renal pelvis and renal parenchyma mixed together;Type Ⅲ:deep infiltration,spread outside of the renal pelvis,no obvious mass in the renal pelvis,thickened wall of the renal pelvis、mass and renal parenchyma were fused,usually with enlarged lymph nodes,invasion of blood vessels and adjacent ureter.Results In these 20 cases,16 were diagnosed with renal pelvis carcinoma,1 case was wrongly diagnosed as renal carcinoma,1 was misdiagnosed as acute pyelonephritis and 1 was collecting tubule carcinoma.All of them were finally diagnosed as invasive carcinoma of renal pelvis by surgical excision and pathology examination.Type Ⅰ was 4 cases,Ⅱ was 4 and Ⅲ was 12.Conclusion The diagnosis of invasive carcinoma of the renal pelvis is not only according to the renal pelvic mass or the infiltrated renal sinus fat and renal parenchyma,sometimes the mass,renal pelvis and renal parenchyma in combination,and sometimes the infiltration outside the renal pelvis is very obvious,however,the thickened wall of renal pelvis is not so obvious.Knowing different manifestations of invasive carcinoma of renal pelvis is useful to improve the diagnostic accuracy.
Related Articles